straight copper tube is widely used for construction and HVACR China ... copper fittings.The main products are: LWC, Pancake Coils, ACR Straight Tubes, Capillary Tubes, Copper Water Tubes, Copper Fittings, insulated Copper ... we produced are always of the best quality Air-Conditioning Straight Tubes 1) Alloy no.: C12200, Temper: soft drawn or half ...