PVC Oxygen Acetylene Twin Welding Hose 1.Made from virgin raw material 2.Size:13/64"- 1/2" 3.Endurable,Light. Welcome to Singsino As a professional manufacturer and supplier of worldwide original materials, Singsino Group Ltd. has invested in several fields in China, includes PVC Hose, Rubber Hose and Plastic Machine which are applied in Food Processing, Industry, Commodity Series etc.PVC Oxygen ...