oil – 40 degrees to 100 degrees; air – 30 degrees to 50 degrees; Water – 0 degrees to 80 degrees.

The products are mainly used in mine hydraulic supports, oilfield exploitation, suitable for engineering construction, lifting and transportation, metallurgical forging, mining equipment, ships, injection molding machinery, agricultural machinery, various machine tools and mechanized and automated hydraulic systems of various industrial sectors to transport petroleum-based (such as mineral oil, soluble oil, hydraulic oil, fuel oil, lubricating oil) and water-based liquids (such as emulsion, oil-water emulsion, water) and liquid transmission with a certain pressure (higher pressure) and temperature, with a maximum working pressure of up to 60MPa.