Our main products: Erw: d:21.7-457.2mm; t: 1.4-14.8mm Spirally submerged arc welded pipe: d: 219-3040mm; t: 5.0-30mm Application: for oil pipe, casing, line pipe in petroleum and natural gas, structural pipe, line pipe in mineral slurry and bittern, water and gas; and also being used for chemical industry, electric power engineering, building structure and pile driving.
