Connecting Pipe, Copper Tube, Aluminum Tube manufacturer / supplier in China, offering Insulation Copper Aluminum Connecting Pipe for Air Conditioner/Air Conditioning (1/2+3/4), Pure Copper Bare Pipe for Refrigerator (8mm*0.8mm) -15-20m, Insulation Copper Aluminum Connecting Pipe for Air Conditioner (1/4+5/8-9m) and so on.