Rubber welding hoses GOST 9356-75Hoses are used to supply pressurized fuel gas, acetylene, town gas, propane, liquid fuel and oxygen gas to devices for welding and cutting metals. The temperature range from -35'C to + 70'C.They are divided into three classes:•I class - the supply of acetylene, town gas, propane, butane. W.P: 2.0 Mpa•II class- for liquid fuel. W.P: 0.63Mpa•III class- oxygen supply. W.P: 2.0 MpaLONGWAY is a professional rubber welding hoses company who is also one of the largest rubber welding hoses manufacturers and suppliers in China. Our factory can offer you high-quality products at low price.