... with different wall thickness 3.high quality Copper Water Tube is widely used for construction and HVACR, ,Fluid transmission of ... cool and hot water and drinking waterTianjin City Juxing Weiye ... LWC, Pancake Coils, ACR Straight Tubes, Capillary Tubes, Copper Water Tubes, Copper Fittings, insulated Copper Tubes and Plasic-coated Copper ...