Miniature Deep Groove Ball Bearing Mf137-2z/2RS/Open 7X13X4mm / China Manufacturer / China Factory NINGBO JINGWEI IMP.&EXP. CO., LTD. Base Info Description Pre：Miniature Deep Groove Ball Bearing Mf117-2z/2RS/Open 7X11X3mm / China Manufacturer / China Factory Next：Miniature Deep Groove Ball Bearing Mf128-2z/2RS/Open 8X12X3.5mm / China Manufacturer / China Factory
