GZY was founded by a group of many years experienced specialists with products developing, designing, producing management and quality control.
Our mills are certified by ISO 9001:2000 and PED 97/23/EC,we are supplying only good quality, traceable inspection and reliable delivery. We are aleading manufacturer of specialized Pipe Fittings, Flanges, Valves meeting National / International Standards such as ASTM / ASME, JIS, IBR and NACE, from Carbon Steel, Alloy Steel and Stainless Steel ... More