For 16Mn straight seam pipe, Q345 straight seam pipe, L415 straight seam pipe, L360 straight seam pipe Our factory is the northern region and scale straight seam steel pipe manufacturing factory, the company has a world-class straight seam steel pipe production, testing and inspection equipment, years straight seam steel pipe production capacity of 400,000 tons, straight seam pipe size 1/4 inch to 20-inch (outer diameter Φ57mm to Φ660mm) thickness 3mm ~ 22mm ERW ,325-1620mm, wall thickness of 8 ~ 88mm submerged arc welding straight seam steel pipe, straight seam steel pipe GB/T3091-2001, GB/T13793-92, GB/T6728-2002 organize production in accordance with the national standards; volume and welding thick-walled pipe 400-4000 * 8-125mm product sales throughout the country and in South Asia, the products are mainly used large span Wangjiagongcheng, water gas pipelines, construction, electrical engineering, mechanical, bridge beams, steel structure, foundation piling and other supporting facilities. My company "in good faith principle, the quality of survival, to the credibility of development", welcome new and old customers coming in contact.