Needle roller bearings yog cov menyuam bearings nrog cylindrical rollers, txheeb ze rau nws txoj kab uas hla, rollers nyias thiab ntev.Cov menyuam no hu ua needle roller.Txawm hais tias muaj qhov me me hla ntu, cov kabmob tseem muaj peev xwm thauj khoom siab, koob bearing nrog nplua thiab ntev ro ...
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