Pneumatic Tube,Pneumatic Pipe,polyurethane pneumatic tube,polyurethane pneumatic Pipe,Polyurethane Tubing,Polyurethane Piping. Characteristics:1.Clear tube with high ... is within +-0.05mm.6.Made of 100% Thermoplastic Polyurethane(TPU),and working for long life under constant pressure ... .Polyurethane tube can be used in the following industries ...