The product is spiral double-faced submerged-arc welded pipes. Now the diameter of our product is from φ219 to φ2520mm and wall thickness is from 5mm to 18mm . Our product comply with the standard of SY/T5037-2000, GB/T9711.1-1997 and API 5L , the material can be Q 235A ,B, 16Manganese and X42-X70 grade plate. The products are widely used in the long-distance transmitting pipelines of natural gas, petroleum, chemical industry, power, heat power and water source etc

    Our product is strictly tested in all process from contract signing, raw material purchasing, producing, and inspection and after sale service, and we passed through ISO9001 Quality System Certification in 2000, passed the API 5L Qualification of American Petroleum Institute in 2006. Our goods pass the third party inspection such as GL, SGS etc. Our goods has export to so many countries such as Portugal , Argentina , USA , Canada , Iran , UAE, South Africa , France , etc. We ensure to supply good product and service for all our customer.