round die for straight pipe threading

同义词释义

1)round die for straight pipe threading,圆柱管螺纹圆板牙2)cylindrical pipe thread,圆柱管螺纹3)taper thread round die,锥螺纹圆板牙4)Parallel screw thread,圆柱螺纹5)straight pipe thread,圆柱形管螺纹6)internal rope thread,内圆牙螺纹