safety ball

 
       
  • 保險鋼珠

safety ball的用法和樣例:

例句

  1. Mechanical Power vises are designed with an unique Ball design structure to furnish superior holding strength with powerful clamping forces to maximize processing accuracy.
    采用特殊鋼珠設計結構,提供強有力的夾持力,進(jìn)而提高精度。
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