1, Xinxing cast pipe

Established in 197 1, Xinhua Group is the world's leading manufacturer of ductile iron pipes and cast pipes, mainly engaged in the manufacture, production and sales of R&D, centrifugal ductile iron pipes/steel pipes/steel-plastic composite pressure pipes/stainless steel pipes and other steel products.

2. Pammusong Bridge

Saint-Gobain Musong Bridge (PAM) was built in Musong Bridge Town, France on 1856. Since the establishment of 160 years ago, the Musong Bridge in Saint-Gobain has been the technical pioneer of water distribution pipeline system, with more than 500 patents of/kloc-0.

The company has 265,438+0 branches in 9 countries around the world, with more than 65,438+00,000 employees, and provides more than 20,000 kilometers of pipeline system products to more than 65,438+020 countries around the world every year.

3. Chongqing Lurun Materials Co., Ltd..

Main products: ductile iron pipes, flexible cast iron pipes, spiral steel pipes, wear-resistant plates, corrosion-resistant steel pipes and composite wear-resistance.

4. The sun of the sun

Shanxi Xuan Industrial Group, established in 2002, is the brand and main drafting unit of the national standard "Ductile Iron Pipes, Fittings and Accessories for Water and Gas Pipes", and is a modern industrial enterprise specializing in the production of water-cooled metal centrifugal ductile iron pipes and fittings.

5. Jigang

Founded in 1958, it is a provincial large-scale enterprise group supervised by the State-owned Assets Supervision and Administration Commission, mainly focusing on medium plate, medium plate, hot-rolled plate and cold-rolled plate.