non return valves

 Non Return Valves

This spare parts is the heart of air compressor,when the pump can not make the pressure,must open the vavle?to check.sometimes is spring is broken,some time is rubber ring is not sealed,sometimes th

 screws assembply parts

· Depth of nitration case:0.5—0.8mm· Hardness of nitration:950—1020Hv· Fragility of nitration:Less than grade 1· Roughness of the surface：Ra 0.4μm· Linearity of the screw:0.015mm· The surface hard chr

 Sell Non Return Valves

WENLING CYCLONE MANUFACTORY&TRADING CO., LTD is a professional non return valves,non return valve,plug valves,china non return valves,non return valves manufacturer,valves manufacturer,needle valves,control valves,ball valves,brass valves,used valves,manifold valves manufacturer and exporter.

 screws assembply parts

NINGBO ZHENHAI JINYI MECHANICAL AND ELECTRICAL CO., LTD. is a professional screw head,screw caps,non-return valves manufacturer and exporter.