Fuzhou Zhengyin Metal Works Co., Ltd. is proud to be a major manufacturer hose fittings and accessories such as cam and groove quick couplings, guillemin coupling, universal air coupling, King combination nipple etc.

We produced earlier in 1980 in Taiwan. In the year 1989 we have established a new factory (including casting and machining) for manufacturing cam and groove quick couplings, which located in Fuzhou City, Fujian China. We have established several factories for casting and ...