Hebei Pu Hao Ltd. specializes in producing ERW Pipe ERW, LSAW steel straight seam double submerged arc welding. Material are: 20 # Q235B, Q235C, Q345A, Q345B, Q345C, Q345D, X42, H40, L245NB, L290NB, L360NB, L415NB, L360, L450, L485, L555, X52, X60, X65, X70 and so on. Executive Standard: GB/T3091, GB/T9711.1, GB/T9711.2, API 5L. Etc. pipe to carry water pressure, bending, flattening and other experiments, the product is widely used in: 1. Petrochemical categories: crude oil, refined oil, petrochemical raw materials and finished products pipeline oil pipeline network. (2) Gas type: sea, land long distance pipelines; natural gas terminal pipeline; gas and city gas pipeline network. 3 Coal categories: coal, coal-water slurry delivery. 4 Structural categories: Terminal steel piling pipe curtain; tall buildings and bridges, structural steel; offshore platform structural steel. 5 other categories: water transport; take drainage lines and high voltage power lines. Prudential source company is willing to cooperate sincerely with all levels of users, welcome. Straight seam steel pipe is parallel to the longitudinal weld steel pipe and steel pipe. Usually divided into metric welded steel pipe, welded thin-walled tube, transformer cooling pipes and so on. Longitudinal production process is simple, high efficiency, low cost, rapid development. Spiral Welded Longitudinal generally higher than, can narrow the billet production of large diameter pipe, you can also use the same width of the billet production of different pipe diameters. But with the same length of straight pipe joints than weld length of 30 to 100%, and lower production rate. General Pipe: Average pipe used to transport low pressure fluid. With Q195, Q215A, Q235A steel. Can also be taken straight seam welded steel pipe with easy-other soft steel. Pipe to carry water pressure, bending, flattening and other experiments, there are certain requirements for surface quality, delivery is usually a length of 4-10m, often required length (or double length) delivery.