We income the advanced lsaw JCOE manufacture equipments and inspection equipments, in?

profession of thick wall and large diameter LSAW. The spec of the diameter is between 406mm and?

1422mm,the length is between 3m-12m,the wall is between 8mm-60mm.The standards of production?

are in below : GB/T 3091,GB/T9711.1,GB/T9711.2,API 5L PSL1/PSL2.The raw materials are?

Q235,Q345,L175-L555,X42-X80.

??The products are widely used in oil/gas transportion and steel structure in construction,including,oil?ubing ,gas transportion , urban pipeline, water coal pipeline in mine, coal slurry pipeline in mine,
transmission lines, wind power, bridge and high-speed railway steel structures ,etc.