Tianjin Shuangjie Steel Pipe Co., Ltd
Your reliable ERW steel pipe supplier
◆ In March 1997, obtained ISO9001 international quality system certification.
◆ In February 2001, obtained the American Petroleum Institute API 5L product certification.
◆ In March 2008, obtained two product certifications from American Petroleum Institute API 5L and 5CT.
◆ In August 2007, obtained the A2 pressure pipe component manufacturing license.
◆ In September 2009,obtained the A1 pressure pipe component manufacturing license
◆ In February 2009, obtained EU CE PED certification
◆ In July 2012, obtained EU CE CPD certification
◆ In May 2012, obtained the Korean Standards Association KS F 4602 product certification.
◆ In May 2012, obtained the Korean Standards Association KS D 3507 product certification.
◆ In May 2012, obtained the Korean Standards Association KS D 3562 product certification.
◆ In December 2013, the company obtained the JIS product certification from the Ministry of Industry of Japan.
Organized production, using modern high-frequency welding technology, relying on advanced quality testing methods, with strict weld seams, uniform and firm zinc layer, all steel pipes are hydraulically tested one by one, accurate in scale, reliable in various mechanical properties, etc. Good market credit. By strengthening the basic management and continuous improvement of the quality system, our company's product yield rate has now reached 96%, and the export commodity inspection pass rate has remained 100% for many years. The company has successfully passed the AQSIQ pressure pipe component manufacturing license and ISO 9000, European CE, API 5L, API 5CT, KS and JIS certification.
Add: East Railway, North Yinhe Bridge, Beichen District, Tianjin, China
Tel: +86-155 1087 0308