HD-STEEL is a professional manufacturer in Carbon steel/Alloy steel/ Stainless steel Pipe fittings & Flanges & ANTI-CORROSION STEEL PIPE in China. Our registered fund is 100 million, With strong economic strength & advanced production equipment. Certificated by API Q1, CE, ISO, CCS, AMSE, etc. All products adopted to API, ASME（ANSI), EN, DIN, JIS, GOST, GB/T, ISO and so on. Our continuing commitment to the production of quality products has made us internationally recognized in the following industries: power generation, petroleum, natural gas, chemical, shipbuilding, heating, papermaking, metallurgy, among others.