... OriginShandong, China (Mainland) MaterialGCr15 , GCr15SiMn Cage MaterialSteel,brass VibrationV1,V2,V3,V4 ClearanceC2 C3 C4 C5 Quality StandardISO9001:2000 FeatureLow noice,long ... -670mmMaterialGCr15,GCr15SiMn,50Mn,42CrMoCage MaterialSteel ,BrassPrecisionP0,P4,P5,P6VibrationV1,V2,V3,V4ClearanceC2 C3 C4 C5Quality StandardISO9001:2000ServiceOEM servicePayment TermT/T,L ...