Our company own ISO9001:2000,API 5L,API 5CT,ISO/TS16949:2002 certificates. Those products have enjoyed a good reputation in markets and sold well such as USA, Canada, Germany, Italy, Britain, Australia, South Korea, Singapore, Brazil, Netherland, Russia, India and so on. The annual exporting amount has exceeded 20,000 tons. Our annual sales amounts have gone beyond 100,000 tons and value has reached US$90,000,000, now has become NO.1 in tube and metal industry in Zhejiang Province. Welcome to cooperate with us to flourish together.