b级

• Hexagon nuts , style 2 , with metric fine pitch thread - product grades a and b
  2型六角头螺母.米制细牙螺纹.产品等级a和b级
• The synchronous set and synchronous clear for stages a and b should be shown as follows
  A和b级的同步置位和同步复位应表示如下。
• Hexagon thin nuts chamfered with metric fine pitch thread - product grades a and b
  米制细牙螺纹六角头薄螺母倒角.产品等级a和b级
• B class fire door
  B级防火门
• Prevailing torque type all - metal hexagon nuts , with slot . product grades a and b . symbol h fr
  开槽金属自锁六角螺帽. a和b级.符号h fr
• Life evaluation of class b insulation systems for series - excitation motor of electric tools
  电动工具用串励电动机b级绝缘结构寿命的评定
• B grade fireproof
  B级阻燃
• B class division
  B级分隔
• Ups to acquire fritz companies , inc . for us $ 450 million in class b common stock
  Ups发行四亿五千万美元b级普通股收购fritzcompanies , inc
• B piecing plate
  B级拼板