This is MR.XU from Cangxing steel pipe & Pipe fitting Co., Ltd. It's my pleasure and honor to contact with you. First of all, I'd like to introduce our company briefly for better understanding with each other.In 2003, our company obtained the certificate of ISO9001 Quality System Authentification, and it started to control the quality in accordance with API 5L and API 5CT in 2004. Also we got the certificate of approval by the Lloydâs Register .Our products mainly includeï¼1ï¼ seamless steel pipe2ï¼ hot-finished pipe3ï¼ stainless steel pipe4ï¼ pipe fittings5ï¼ Flange6ï¼ supporting tubingif you have any inquiry,pls contact me ASAP. Thank you & best regards Contact:MR.XU xinde0086 138 337 96951