Pneumatic Tube,Pneumatic Pipe,polyurethane pneumatic tube,polyurethane pneumatic Pipe,Polyurethane Tubing,Polyurethane Piping. Characteristics:1.Clear tube with high transparency.2.Bendable without damage and ... transmission line,Non-corrosive chemical transmission system,Processing control,Auto assembly line,Laboratory,Robotics,Water transmission&gardening. polyurethane pneumatic tube(T1612-100)