Welding steel pipe

Our company production of large diameter welded steel pipe volume, thick wall brazed tube and the project of the steel pile and structural tube. Production of φ 400mm to φ 3000mm, wall thickness of 7mm - 800mm, the longitudinal and girth welding of pressure steel pipe manufacturing, product form: 2 meters to 3 meters width of steel plate as the foundation, made into a 2 m / day to 6 meters / quarter, each branch length and then welded into the required. The main material is Q235B Q345B 20# 16 manganese content. Products used in petrochemical, natural gas, steel structure of bridge pile, city water supply and drainage, sewage and building large facilities such as steel pipe pile and the structure of building engineering. Products with high strength, high pressure resistance, convenient installation, low cost, long service life, praised by user