Shanghai Xizi?????? Precision Mold Co., Ltd. was?????? established in 2003, located in Shanghai, an expert in?????? producing various?????? series of?????? ball spring plungers, indexing plungers and ball transfer units,?????? metric or inch, steel or stainless steel, threaded or unthreaded,?????? applied?????? in positioning, indexing, holding and ejecting etc. ?????????????????? We has an excellent team of technicians and workers, advanced machines including lathing, milling, planing ,punching and heat-treating equipment. Particularly, ...