Bearings yog ib qho ntawm feem ntau siv cov khoom siv tshuab, bearing kev sib hloov thiab reciprocating txav ntawm lub ncej, smoothing lub zog ntawm lub ncej thiab txhawb nws.Yog tias siv cov bearings, kev sib txhuam thiab hnav tuaj yeem txo.Ntawm qhov tod tes, yog tias qhov zoo ntawm cov kabmob qis, nws yuav ...
Nyeem ntxiv