... it is specialized in HVACR copper tubes, environmental protection copper water tubes and copper fittings.The main products ... , ACR Straight Tubes, Capillary Tubes, Copper Water Tubes, Copper Fittings, insulated Copper Tubes and Plasic-coated Copper Tubes. 3 Being of ... always of the best quality4 The main application of aluminum tubes: Automotive heat exchangers, air conditioning and refrigeration ...