Qingdao Hongtai International Trading Co., Ltd is a leading and professional company exporting copper tube for air-conditioning, refrigeration, construction, gas, water in East China. And we have our own producing company: Qingdao Hongtai Metal Co., Ltd and Qingdao Hongtai Copper Co., Ltd. We mainly produce: Copper Pancake Coil, Copper Straight Pipe, Copper Capillary Tube, Copper LWC Coil, Insulated Copper Coil, PVC-Coated Copper Pipe according to ASTM, JIS, AS, NZS Standards. Now we exported more 30 countries.