Chinese | English |
电标准绕距 | standard pitch |
标准螺距 | standard pitch |
美国标准直管内螺纹 | American Standard internal straight pipe threads |
美国标准美制直管螺纹 | American Standard straight pipe thread (national pipe straight thread) |
美国标准粗螺纹 | national coarse thread |
美国标准细螺纹 | national fine thread |
美国标准美制锥形管螺纹 | national standard pipe taper thread |