Air Fitting, Air Cylinder, Solenoid Valve manufacturer / supplier in China, offering Imperial Size 1/4& Rdquor; to 1/2& Rdquor; Od Coil Polyurethane Pipe Flexible PU Air Hose, JIS / ISO Hose Specs Durable Compressed Line Nylon Pneumatic Tube, Spiral Form Structure Lightweight PE Air Tube Polyethylene Compressed Tubing and so on.