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  • Ultimate Guide to ISUZU Fire Truck Pumps: Types, Performance & Maintenance
    Ultimate Guide to ISUZU Fire Truck Pumps: Types, Performance & Maintenance
    June 06, 2025
    ISUZU fire trucks are widely recognized in the global firefighting industry for their reliability, efficiency, and adaptability. As the core component of a fire truck, the performance of the fire pump directly impacts firefighting efficiency. ISUZU fire trucks are typically equipped with various pump models, such as CB10/20, CB10/30, CB10/40, CB10/60, CB10/80, and CB10/100, to meet different firefighting scenarios. This article provides a detailed introduction to the applicable vehicle models, working principles, and maintenance methods for these fire pumps, helping users better understand and operate ISUZU firefighting trucks.   1. Common Fire Pump Models for ISUZU Fire Trucks and Applicable Vehicle TypesISUZU fire trucks are equipped with fire pumps of different specifications based on load capacity and functional requirements. Common models include CB10/20, CB10/30, CB10/40, CB10/60, CB10/80, and CB10/100, where the numbers represent the pump's flow rate (L/s) and pressure (bar). For example, CB10/40 indicates a flow rate of 40 L/s and a pressure of 10 bar.• CB10/20, CB10/30: Suitable for light-duty ISUZU fire trucks (e.g., ISUZU NKR or NQR fire vehicles), primarily used for community firefighting and small-scale fire suppression.• CB10/40, CB10/60: Commonly found in medium-duty ISUZU fire trucks (e.g., ISUZU FTR or FVR fire engine), suitable for urban firefighting, industrial zone fire suppression, and other high-demand tasks.• CB10/80, CB10/100: Mainly used in heavy-duty ISUZU fire trucks (e.g., ISUZU GIGA firefighting trucks), designed for large-scale fires, airport firefighting, and other high-flow scenarios.Main parameters for fire pump:   Model Work condition Flow rate (L/S) Outlet pressure (Mpa) Rated speed (r/min) Power (KW) Suction depth (m) CB10/20 1 20 1.0 3135±50 34 3 2 14 1.3 3440±50 35 3 3 10 1.0 3059±50 22 7 CB10/30 1 30 1.0 3010±50 48 3 2 21 1.3 3340±50 52 3 3 15 1.0 3000±50 34 7 CB10/40 1 40 1.0 3080±50 60 3 2 28 1.3 3360±50 61 3 3 20 1.0 2990±50 39 7 CB10/60 1 60 1.0 3200±50 102 3 2 42 1.3 3475±50 106 3 3 30 1.0 3130±50 73 7 CB10/80 1 80 1.0 3400±50 137 3 2 56 1.3 3500±50 130 3 3 40 1.0 3130±50 83 7 CB10/100 1 100 1.0 2270±50 149 3 2 70 1.3 2320±50 138 3 3 50 1.0 2050±50 115 7   These fire pumps adopt a centrifugal design, offering high efficiency, stability, and durability, meeting the operational needs of various ISUZU fire engines.2. Working Principle of Fire PumpsThe fire pumps installed in ISUZU fire trucks are typically centrifugal pumps, which operate based on centrifugal force. When the engine drives the pump shaft to rotate, the impeller spins at high speed, causing water to flow rapidly within the pump casing. Due to centrifugal force, water is pushed outward, forming a high-pressure stream that is delivered through the outlet to fire hoses or nozzles.The advanta...
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  • Complete Guide to ISUZU Foam Fire Trucks – Specs, Uses & Troubleshooting
    Complete Guide to ISUZU Foam Fire Trucks – Specs, Uses & Troubleshooting
    May 30, 2025
    The ISUZU Foam Fire Truck is a high-efficiency firefighting vehicle specifically designed to combat Class A (solid fires), Class B (liquid fires), and mixed fires. Built on the high-performance ISUZU chassis, it integrates the core functions of a water tank fire truck while adding a foam fire suppression system. This system utilizes a foam proportioning device to mix water and foam concentrate in precise ratios, forming a highly covering and long-lasting foam extinguishing agent. This significantly enhances the efficiency of extinguishing flammable liquid fires, such as those involving oil and chemicals. The vehicle is widely used in high-risk fire scenarios, including petrochemical plants, airports, and warehouses, and features rapid response, operational flexibility, and ease of maintenance.   I. Main Structure of the ISUZU Foam Fire TruckThe ISUZU Foam Tanker Fire Truck consists of the following main components: the ISUZU chassis, crew cab, tank, pump and piping system, power take-off and transmission device, additional cooler, auxiliary electrical system, firefighting equipment and fixtures, foam mixing system, and an air foam-water dual-purpose cannon (as shown in the figure below). Among these, the chassis, crew cab, tank, power take-off and transmission device, additional cooler, auxiliary electrical system, and firefighting equipment and fixtures are identical to those of a water tank fire truck.The key difference between the ISUZU Foam Fire Engine and a water tank fire truck is that the foam fire truck is equipped with a foam tank and a foam proportioning system. The foam fire truck primarily consists of a foam proportioner, pressure water piping, foam concentrate inlet/outlet piping, and ball valves. The foam proportioning system is used during firefighting to mix water and foam concentrate in a specific ratio, delivering the mixture to foam-generating devices.   II. Operation of the ISUZU Foam Fire TruckThe operation of the foam fire truck is similar to that of a water tank fire truck, with the addition of foam system operations.(1) Foam Concentrate FillingThere are three methods to fill the foam concentrate tank of the ISUZU Foam Fire Truck:1. Directly pouring through the manhole.2. Using a dedicated foam transfer pump.3. Using the vehicle’s compressed air to transfer foam concentrate from a barrel.The steps for the third method are as follows:• Connect the suction hose, air charging nozzle, tire inflation hose, and fittings.• Start the engine to ensure sufficient compressed air pressure in the vehicle’s air reservoir.• Close the air foam proportioner and open the inlet valve to the foam concentrate tank.• Connect the inflation hose to the charging nozzle to allow compressed air into the foam barrel.• The foam concentrate is then forced into the foam tank under air pressure.• Once the barrel is empty, immediately close the air reservoir’s exhaust valve and the foam tank’s...
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  • Daily Maintenance Guide for Monitors of HOWO Fire Truck
    Daily Maintenance Guide for Monitors of HOWO Fire Truck
    May 23, 2025
    The fire monitor is a critical firefighting component of HOWO fire trucks, and its performance directly impacts fire suppression efficiency and operational safety. To ensure stable operation during emergencies, systematic and scientific daily maintenance is essential. This guide details the key maintenance points for HOWO fire truck monitors, helping users extend equipment lifespan and ensure optimal firefighting effectiveness.     1. Regular Cleaning: Prevent Dirt AccumulationFire monitors on HOWO tanker fire truck are frequently exposed to harsh firefighting environments, making them prone to dust, grease, and scale buildup, which can clog nozzles or hinder mechanical movement. Regularly wipe the monitor’s exterior with a soft cloth and mild detergent, avoiding strong acids or alkalis that may corrode metal or seals. For internal passages, flush with low-pressure clean water periodically to prevent residue buildup. After cleaning, ensure all parts are dry to avoid rust from moisture.   2. Lubrication of Key Components: Ensure Smooth OperationThe monitor’s rotating mechanisms, adjustment valves, and joints must remain flexible to maintain proper spray angles and pressure control. Use specialized lubricants (such as silicone-based grease or high-temperature-resistant oil) on moving parts, particularly the swivel bearings and adjustment handles. Lubrication frequency depends on usage—monthly checks for frequently used vehicles and quarterly maintenance for less active ones. Avoid over-lubrication, as excess grease can attract dust and impair performance.3. Comprehensive Inspections: Detect Potential Failures EarlyBefore and after each operation, conduct basic checks on the HOWO tender fire truck monitor, including:• Nozzle: Check for deformation or blockages to ensure even water dispersion.• Pipes & Valves: Inspect for leaks, cracks, or loose connections, and tighten all bolts and quick couplings.• Seals (O-rings, gaskets): Replace if worn or aged to prevent pressure loss.• Electrical Components (for remote-controlled monitors): Test control circuits and motors to prevent moisture-induced short circuits.Regular inspections significantly reduce unexpected failures, keeping the monitor ready for action.   4. Rust & Corrosion Prevention: Extend Equipment LifespanSince monitors are constantly exposed to water and firefighting chemicals, metal parts are susceptible to corrosion. Although fire monitors are typically made of stainless steel or galvanized materials, regularly check the anti-corrosion coating. If paint is peeling or rust appears, sand the area and apply high-temperature-resistant anti-rust paint. For critical joints (flanges, threaded connections), apply anti-rust grease to prevent seizing. In coastal or humid regions, increase inspection frequency and reinforce protective measures.5. Performance Testing & Calibration: Ensure Firefighting Accuracy A monitor’s spray...
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  • The Structure and Functions of Each Part of an ISUZU Powder Fire Truck
    The Structure and Functions of Each Part of an ISUZU Powder Fire Truck
    May 16, 2025
    In the modern firefighting equipment system, powder fire trucks play a crucial role in responding to various types of fires due to their rapid response and high-efficiency extinguishing capabilities. The ISUZU powder fire truck, with its outstanding engineering design, serves as a key asset in industries such as chemical plants, power facilities, and transportation. This article provides an in-depth analysis of the five core structures and functions of the ISUZU fire truck, helping firefighting professionals gain a comprehensive understanding of this specialized equipment.   The structure of the ISUZU dry powder fire truck mainly consists of the following parts: the discharge system, fire extinguishing agent storage, power transmission system, control system, and vehicle body.1. Jetting SystemAs the core component of the ISUZU powder fire truck, the discharge system directly determines fire extinguishing efficiency and coverage. This system typically includes a high-pressure water pump, powder discharge pipes, and water curtain nozzles. The high-pressure water pump provides the necessary water pressure for jetting, the powder discharge pipes deliver dry powder to the fire scene, and the water curtain nozzles create a protective water barrier to isolate the fire from the surrounding environment.   2. Fire Extinguishing Agent Storage TankThe ISUZU powder fire engine carries a large amount of dry powder extinguishing agent, which is highly effective in suppressing various types of fires. The storage tank usually consists of one or more powder tanks, connected to the jetting system via pipelines.3. Power Transmission SystemThe ISUZU powder fire truck typically uses an internal combustion engine as the power source to drive equipment such as the high-pressure water pump and air compressor. The power transmission system mainly consists of the engine, transmission device, and hydraulic system.   4. Control SystemThe control system of the ISUZU powder firefighting truck is primarily used to regulate the discharge system, start/stop the water pump, and adjust the amount of extinguishing agent released. Through this system, firefighters can fine-tune the operation of the discharge system to achieve optimal firefighting performance.5. Vehicle BodyThe vehicle body of the ISUZU powder fire truck includes the chassis, driver’s cabin, and powder storage compartment. The chassis is usually modified from a heavy-duty, high-mobility automotive chassis to adapt to various working environments. The driver’s cabin accommodates the operator and provides control interfaces and safety protection. The powder storage compartment, typically located at the rear of the vehicle, holds the dry powder extinguishing agent.   By analyzing the five major systems of the ISUZU powder fire vehicle, we can see how this professional firefighting vehicle embodies intelligent engineering in every detail. From the precise discharge system to the smart contr...
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  • ISUZU Foam Fire Truck: Operation & Troubleshooting Guide
    ISUZU Foam Fire Truck: Operation & Troubleshooting Guide
    May 09, 2025
    The ISUZU foam fire truck, as specialized firefighting equipment, excels in its highly efficient foam suppression system. Compared to water tank fire trucks, while retaining the basic water tank structure, it is additionally equipped with key components such as a foam liquid tank, air-foam proportioning system, and foam-water monitor, forming a unique foam firefighting capability. To maximize the effectiveness of these systems, operators must master standardized operating procedures and understand troubleshooting methods for common issues. Below, we will provide a detailed analysis of the professional operation methods for the ISUZU foam tanker fire truck, covering both operational steps and typical troubleshooting approaches.     Operation of the ISUZU Foam Tender Fire Truck   1. Foam Liquid Refilling There are two methods to refill the foam liquid tank in an ISUZU foam fire engine: • Direct pouring through the manhole. • Compressed air transfer from foam liquid drums using the truck's onboard air system. Steps for compressed air transfer: ① Connect the suction tube, air charging nozzle, and tire inflation hose with adapters.② Start the engine to ensure sufficient air pressure in the truck's air reservoir.③ Close the foam proportioner and open the foam tank inlet valve.④ Connect the air hose to the charging nozzle to introduce compressed air into the foam drum.⑤ The foam liquid is pushed into the foam tank under air pressure.⑥ Once the drum is empty, immediately shut off the air release valve and foam tank inlet valve to prevent excessive air intake.     2. Foam Firefighting Operations   (1) Internal Foam Suction (Tank Supply) Foam is drawn from the onboard foam tank via the proportioning system.   Steps: ① Connect hoses, foam guns, or monitors as needed. For medium/high-pressure hose reels, install the dedicated foam attachment.② Set the foam gun selector to "mixed solution" or "water" position.③ Start the water pump (refer to water tank truck operations).④ Open the pressure water valve leading to the foam proportioner.⑤ Increase engine throttle to adjust pump pressure based on foam gun/monitor requirements.⑥ Rotate the proportioner valve to align with the foam gun’s calibrated orifice setting.⑦ Open the foam inlet valve—the proportioner will continuously draw foam at the set ratio.     (2) External Foam Suction (Drum Supply) Foam is drawn from an external drum via the proportioner.   Steps: ① Close the foam tank inlet valve, open the T-pipe cap, and connect an external suction tube to the drum.② Open the drum’s air vent, then follow internal suction steps.   (3) Self-Suction Foam (Direct Gun Supply) Foam guns directly draw from drums via a suction tube.   Steps: ① Connect one hose end to the pump outlet and the other to the foam gun. Insert the suction tube into the drum.② Open the drum’s air vent.③ Set the foam gun to "suction" mode and proceed as ab...
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  • Isuzu NPR Fire truck 4HK1 engine repair manual
    Isuzu NPR Fire truck 4HK1 engine repair manual
    April 01, 2025
    The Isuzu Fire Truck 4HK1-TC Engine Maintenance Manual, also called Engine repair manual of Isuzu fire tender or Engineer book of Isuzu fire fighting vehicle. The Isuzu Fire Truck 4HK1-TC engine is a high-performance diesel engine widely used in fire trucks, known for its reliability, durability and high efficiency. In order to ensure the long-term stable operation of the engine, regular maintenance and repair are essential. This article will briefly introduce the main contents of the Isuzu Fire Truck 4HK1-TC Engine Maintenance Manual to help maintenance personnel better understand and operate.   1. Engine Overview ‌ The 4HK1-TC engine is a 4-cylinder inline turbocharged diesel engine with a displacement of 5.2 liters and a maximum power of 190 horsepower. The engine uses an advanced common rail fuel injection system and an electronic control unit (ECU) to achieve higher fuel efficiency and lower emissions.   2. Daily Maintenance ‌ Daily maintenance is the basis for ensuring the normal operation of the engine. The maintenance manual lists in detail the items for daily inspection, including oil and coolant level inspection, air filter cleaning or replacement, fuel filter replacement, etc. In addition, the manual also provides recommendations for regular replacement of engine oil and oil filter, usually every 5,000 kilometers or every 6 months.   3. Fault Diagnosis‌ The maintenance manual contains a detailed fault diagnosis process to help maintenance personnel quickly locate and solve problems. The manual lists common fault codes and their meanings, and provides corresponding solutions. For example, if the engine is underpowered, the manual will guide maintenance personnel to check the fuel system, turbocharger and exhaust system, etc.   4. Overhaul and Parts Replacement‌ For engines that need overhaul or replacement of parts, the maintenance manual provides detailed steps and precautions. For example, when replacing key components such as piston rings, valve guides and bearings, the manual will detail the steps for removal and installation, as well as the required tools and torque specifications.   5. Safety Precautions‌ The maintenance manual places special emphasis on the importance of safe operation. Before performing any maintenance operations, you must ensure that the engine has been completely cooled and the power supply is disconnected. In addition, the manual also provides recommendations for the use of personal protective equipment, such as gloves, goggles and protective clothing.   Section 1A Engine control system Table of Contents Page Engine control system.. 1A-4 Precautions 1A-4 Function and working principle. 1A-5 Parts configuration diagram.. 1A-21 Circuit diagram.. 1A-25 How to diagnose the fault 1A-42 Fault diagnosis operation procedures through fault diagnostic meter 1A-48 Functional check overview.. 1A-50 Inquiry. 1A-51 Engine control system check. 1A-53 Fault diagnostic me...
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  • Engineering drawing of fire department rescue truck Isuzu
    Engineering drawing of fire department rescue truck Isuzu
    March 25, 2025
    Engineering drawing of fire department rescue truck， also named drawing of Isuzu heavy fire engine. Today, as the urbanization process continues to accelerate, the increase in high-rise buildings, underground spaces and complex industrial facilities has put forward higher requirements for firefighting and rescue. Traditional fire trucks often seem to be unable to cope with these complex scenes. Therefore, designing a heavy-duty fire truck that can cope with future challenges has become an important direction for the development of firefighting technology. Based on the technical background of 2025, this article will explore the design drawings of an innovative heavy-duty fire truck and analyze its uniqueness.     1. Design concept: combination of intelligence and modularity The heavy-duty fire truck of the future is not only a "fire-fighting machine", but also a mobile rescue platform that integrates intelligence, modularity and multi-function. The core concept of the design drawing is "intelligent perception, rapid response, and multi-scenario adaptation". Through artificial intelligence, the Internet of Things and modular design, this fire truck can quickly switch functions in different scenarios to maximize rescue efficiency.         2. Appearance design: streamlined and high-strength materials In terms of appearance, this heavy-duty fire truck adopts a streamlined design, which not only reduces wind resistance, but also improves the aerodynamic performance of the vehicle. The body is made of high-strength alloy material, which can maintain structural stability in extreme environments such as high temperature and explosion. The roof is equipped with a retractable drone launch platform, which can quickly deploy drones for fire detection in the early stage of a fire.   3. Power system: hybrid power and all-terrain adaptation The power system adopts a hybrid design, combining the advantages of diesel engines and electric motors. The diesel engine provides strong power output, while the electric motor achieves zero emissions at low speeds and in urban environments. In addition, the vehicle is equipped with an all-terrain adaptation system, including adjustable suspension and tracked drive, which can freely travel in complex terrains such as mountains and swamps.   4. Intelligent equipment: AI fire analysis and automatic fire extinguishing The vehicle is equipped with an artificial intelligence-based fire analysis system, which can collect fire data in real time through sensors and cameras, analyze the trend of fire spread, and automatically generate the optimal fire extinguishing plan. At the same time, the vehicle is equipped with an automatic fire extinguishing device, which can accurately deliver fire extinguishing agents without human operation to reduce the danger of firefighters.   5. Modular design: multi-functional rescue platform The biggest highlight of this heavy-duty fire truck is its modular...
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  • Designed Drawing for Aerial Fire truck ISUZU
    Designed Drawing for Aerial Fire truck ISUZU
    March 23, 2025
    The technical design drawings of the 38-meter aerial fire truck cover several key parts such as the vehicle structure, hydraulic system, electrical system, jet system and safety design, ensuring the vehicle's efficient, flexible and safe operation in complex fire scenes. Through continuous technological innovation and optimization, the 38-meter high-lift jet fire truck will play a more important role in future firefighting and rescue.   The Isuzu Giga 38-meter aerial fire truck is a fire-fighting equipment specially used for fire rescue in high-rise buildings, large-span spaces, petrochemicals, etc. Adopt Isuzu GIGA 6x4 or 8x4 cab truck chassis, FAST 12-shift gearbox, special for fire fighting appliction. Its core function is to raise the fire cannon or jet device to a height of 38 meters by raising the boom to achieve long-distance and accurate firefighting operations. This model is mainly composed of a folding telescopic arm structure, an electric remote-controlled fire cannon, a tank body and a second-class chassis. The boom is usually a multi-section telescopic design (such as a two-section arm, a three-section arm or a four-section arm), and an electronic remote-controlled fire cannon is installed at the end of the arm. Firefighters can flexibly adjust the spray angle at high altitudes through an electric remote control device to perform firefighting operations such as spraying, water spraying or foam spraying.       The telescopic movement of its boom is synchronized by a hydraulic cylinder, chain and guide wheel. The fire hose is fixed on one side of the telescopic arm and is telescoped and raised with the boom. The operator can control the telescopic and rotation of the boom through the electric control handle on the turntable to ensure the flexibility and efficiency of the firefighting operation. In addition, the 38-meter high-rise jet fire truck also has the ability to operate over a very long span, and can achieve three-dimensional coordinated operations and ultra-close pinpoint firefighting. It is suitable for complex fire scenes such as high-rise buildings, large-span spaces, and petrochemicals.   The following is a detailed analysis of its technical design drawings. 1. Vehicle structure design The vehicle structure design is the basis of the 38-meter high-lift jet fire truck, mainly including the chassis, lifting arm, turntable and cab. The chassis is made of high-strength steel to ensure the stability and carrying capacity of the vehicle under complex road conditions. The lifting arm adopts a multi-section telescopic design with a maximum lifting height of 38 meters. The arm frame is made of lightweight aluminum alloy material, which not only ensures strength but also reduces the weight of the vehicle. The turntable is designed as a 360-degree full-rotation structure to ensure that the fire truck can flexibly adjust the spray angle during operation.   2. Hydraulic system design The hydraulic system is ...
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  • Isuzu giga water foam fire engine truck technical drawing
    Isuzu giga water foam fire engine truck technical drawing
    February 12, 2024
    2D Technical Design Drawing of Isuzu giga water foam fire engine truck is the key to the realization of vehicle functions. Its design needs to comprehensively consider multiple aspects such as structure, system, material and process. Through scientific design and manufacturing, water tank foam fire truck can play an important role in fire rescue and protect people's lives and property.   Isuzu giga water foam fire engine truck is a special vehicle that integrates the functions of water tank truck and foam fire truck. It is widely used in emergency situations such as fire fighting and chemical leakage treatment. The following is a detailed analysis of the technical design drawing of water tank foam fire engine truck.   Engine & Performance Equipped with a 5.2L Isuzu 4HK1-TCG turbocharged diesel engine, delivering 205 hp at 2,500 rpm and 506 Nm of torque. Compliant with Euro 5 emission standards, it ensures fuel efficiency and low environmental impact. Chassis Design Built on a reinforced Isuzu Giga 4X class FTR  chassis, featuring a GVWR (Gross Vehicle Weight Rating) of 15,000 kg. The rigid frame supports heavy-duty firefighting operations with a wheelbase of 4,800 mm for stability. Firefighting System Integrated water and foam dual-agent system, capable of discharging 3,000 L/min water and 1,500 L/min foam. Operates via a front-mounted monitor with a reach of 60 meters. Tank Capacities Includes a 6,000-liter stainless steel water tank and a 1,000-liter foam concentrate tank. Both tanks feature corrosion-resistant coatings and quick-refill ports. Pump Specifications Powered by a centrifugal pump with a maximum pressure of 10 bar. Supports simultaneous water/foam discharge or independent operation via ergonomic valve controls.       1. Whole vehicle structure design The whole vehicle structure design of Isuzu giga water foam fire engine truck includes chassis, body, water tank, foam tank, pump room and operating platform. The chassis usually adopts heavy truck chassis to ensure the carrying capacity and stability of the vehicle. The body is made of high-strength steel with good impact resistance and fire resistance. The water tank and foam tank are used to store water and foam fire extinguishing agent respectively.   2. Water system design The water system is the core part of the Isuzu giga water foam fire engine truck, including a water pump, water pipes, nozzles and a control system. The water pump uses a high-pressure centrifugal pump, which can provide stable water pressure and flow. The water pipe uses high-pressure and corrosion-resistant rubber or composite materials to ensure normal operation in extreme environments.   3. Foam system design The foam system consists of a foam tank, a proportioning mixer, a foam pump and a spraying device. The foam extinguishing agent is stored in the foam tank, and the proportioning mixer mixes the foam agent with water in a certain proportion to form a foam soluti...
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