tapping screw thread是什么意思_tapping screw thread中文

tapping screw thread中文什么意思

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Tapping screw thread
自攻螺纹
Hexagon washers head drilling screws with tapping screw thread iso 15480 : 1999 ; german version en iso 15480 : 1999
六角凸缘头自钻自攻螺钉
Subland twist drills with parallel shank for holes prior to tapping screw threads and for relief countersinks
留隙沉头钻和攻螺纹孔前用直柄多刃阶梯麻花钻
Drilling screws with tapping screw thread - mechanical und functional properties iso 10666 : 1999 ; german version en iso 10666 : 1999
自钻自攻螺钉.机械和功能特性
Subland twist drills for holes prior to tapping screw threads . part 1 : the types and dimensions for subland twist drills with parallel shanks
攻丝前钻孔用阶梯麻花钻第1部分:直柄阶梯麻花钻的型式和尺寸

tapping screw thread中文什么意思