China Qingdao Saiwo is the best steel ball manufacture ...


Established in 1999,Qingdao Saiwo Industry corporaction has specialized in designing and manufacturing bearings,rollers,steel balls and OEM parts for rolling elements.The products widely used on automotive parts,sliding doors,caster wheels,ammunition applications. With skilled technicians and expert R&D team,Qingdao Saiwo has created advanced ...
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