Co-Working Developing Co.,Ltd was founded in 2008, is located in Tianjin, an important port city in northern China. We have rich product resources and professional experience in pipeline. We are the agent of Shanghai Baosteel, Tianjin TPCO, Mongolia Baotou Steel, Jingjiang special steel, Hengyang valin steel tube, Linzhou fengbao pipe industry, our line pipe mainly used for oil, natural gas, chemical, electric power and other industries in gas, water, oil and other medium transmission. We have provided high quality pipes for many oil and gas, sewage treatment plants and major projects in the Middle East, southeast Asia, South America, Africa and other parts of the world. The spot stock of seamless steel pipe is more than 30,000 tons, which can ensure a good delivery time, the urgent order can be arranged within one week. At the beginning of company establishment，we wanted to be an integrated supplier and build professional industrial and civil pipeline projects. Through the specialization of operation and management to provide clients with high quality carbon steel seamless pipe, JCOE steel pipe, ERW steel pipe, stainless steel pipe, as well as the carbon steel stainless steel pipe fittings, forged fittings, flanges and other industrial pipe and pipe fittings. API 5L PSL1, PSL2 grade pipeline pipe, submarine pipeline pipe, acid pipeline pipe, low temperature pipeline pipe and other multi-purpose, high-grade products, can meet different customer demand, the highest strength level up to X100Q/L690Q, the outer diameter of steel pipe range: 60.3 ~ 762mm, wall thickness range: 3.5mm ~ 120mm. In addition, we can also implement other standards: GB/T 9711-2017, ISO 3183-2012, NACE MR0175/ISO 15156, DEP 31.40.20.37, TOTAL GS EP PLR 201, CSA z245.1-14, koc-ms-001 pt.1 rev. 2 (2009), koc-ms-018, dnv-os-f101, ips-m-pi-190. We regard integrity as our life, seek development with quality, and strive to become a trustworthy partner of customers.