管螺纹

• Pipe threads , general purpose
  通用的管螺纹
• Steel conduit thread ; thread gauges , " go " and " not go " thread ring gauges
  钢制导线管螺纹.螺纹量规.过端和不过端螺纹环规
• Specification for envelope dimensions for bronze globe valves nps 1 4 to 2
  美国标准直管螺纹1 4至2英寸青铜球阀阀壳尺寸规范
• Parallel pipe threads
  圆柱管螺纹
• Standard specification for taper pipe threads 60 for thermoplastic pipe and fittings
  热塑性塑料管及配件用60锥形管螺纹标准规范
• Dryseal pipe threads
  干封管螺纹
• Dryseal pipe threads
  干封管螺纹
• Hand - and machine - operated circular screwing dies for parallel pipe threads . g series
  攻制平行管螺纹的手动控制和机械控制圆螺丝板牙
• Thread run - outs and thread undercuts for pipe threads conforming to iso 228 part 1
  与iso 228第1部分相符的管螺纹的螺纹收尾和空刀槽
• Taper pipe threads
  锥管螺纹