A.滾動(dòng) B.承載 C.傳遞 D.牽引
A.0.025~0.508mm B.0.025~0.54mm C.0.025~0.58mm D.0.075~0.54mm
A.0.075~0.50mm B.0.075~0.54mm C.0.025~0.580mm D.0.075~0.564mm