This unit is suitable for the production of PVC steel wire reinforced hoses. The pipe wall is made of PVC soft plastic, and the spiral steel wire has the characteristics of resistance to extrusion, corrosion, static, high pressure and good flow. It is suitable for high pressure and flammable gas, liquid transportation, and liquid impurities. Heavy-duty light-discharge, mainly used in machinery, chemical, construction, agricultural irrigation and vacuum equipment, and hoses for vacuum cleaners.