... Group, it is specialized in HVACR copper tubes, environmental protection copper water tubes and copper fittings.The main products are: ... Coils, ACR Straight Tubes, Capillary Tubes, Copper Water Tubes, Copper Fittings, insulated Copper Tubes and Plasic-coated Copper Tubes. Being of the top ... the products we produced are always of the best quality Inner-Grooved Copper Tube 1) Alloy no.: C12200, Temper: ...