Jiangsu Zuzem Valves Co., Ltd, established in 1972, is a leading enterprise manufacturing valves in China. Zuzem is able to produce CI valves, brass valves, bronze valves, cast steel valves. Zuzem covers 15000m2. There are over 1100 staff members and 298 various engineering technicians in Zuzem.. Zuzem is one of the chief units for drawing out the national standards: GB/T12232, GB/T12233, GB8464, GB9306,faucet standard QB1334 and the pipe thread standards GB7306 and GB7307,