The characteristic features of these bearings for extreme temperatures include large radial internal clearance and special cages and shields.

 
  • 這種用于極端溫度的軸承特征是徑向內部游隙大及帶特殊保持架和防塵罩。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan