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 Materials. Our products are used for water processing, power, ship-building, Petroleum, Chemical, Power, Gas, Metallurgy, Shipbuilding, Construction, etc. The depth of back-up inventory in our branches and distribution nods gives us the strategic advantage for providing a high levelcustomer service across a broad geography. Connecting Everything! A pipeline world of safe with GZY Pipefitting.