High-pressure hoses are used in mine hydraulic supports, oilfield development, engineering construction, hoisting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools, and mechanical and automated hydraulic systems in various industrial sectors for conveying petroleum-based liquids (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricating oil) and water-based liquids (such as emulsions, oil-in-water emulsions, water) under specific pressure and temperature, as well as pipelines for liquid transmission.