Our company GAO XIN ZHANGTONG is one of the largest manufacturers of copper tubes in China, with annual turnover of more than USD 400 million. We can provide you copper tubes in LWC, Inner Grooved, Pancake coil, straight length and aluminum foils with outstanding quality and competitive price. As ISO9001, ISO14001, ITS (Canada) NSF (USA) & BSI (U.K.) certified company, we are qualified supplier of Carrier, Trane, Haier and a lot of manufacturers in ACR, heating and cooling industries. We believe that our tubes could make your products more safe, more efficient and more competitive.You may visit our web http://xxxxx for further information of us. Provided you have any enquiry, please contact me by e-mail: xxxxx