Profile: Tianjin HuaYou Steel Pipe Co.,Ltd manufactures and exports welded steel pipes. Our products include seamless steel pipes for pipeline & oil casing, large wall thickness, epoxy coated, large diameter & three layer PE steel pipes. Our spiral steel pipe is tested in all processes, from contract signing, raw material purchasing, producing, inspection and after sale services. Our steel pipes are spiral double-faced submergible-arc welded pipes. The diameter of our product is from 219mm to 2420mm and the wall thickness is from 5mm to 30mm. Our SSAW steel pipes are used in long-distance transmitting pipelines of natural gas, petroleum, chemical industry, power, heat power water source and industry structure. Seamless line pipes are used for construction of long distance pipelines for combustible liquids & gases, nuclear stations, heating systems & general purpose pipelines. LSAW steel pipes are used as construction pipes on offshore platforms, power stations, petrochemistry and city construction. The LSAW steel pipe internal stress is very small and uniformly distributed after full-length expansion, thus corrosion & cracking of pipes owing to stress can be effectively prevented. The application of welding on-site is undertaken because of high dimension precision.