aeronautical national taper pipe threads
国际航空用锥形管螺纹标准
NPT tapered tube thread gauges
NPT锥管螺纹量规
special taper thread tap for gas cylinder
气瓶专用锥形螺纹丝锥
Taper pipe threads with 60 degree
GB/T12716-199160°圆锥管螺纹
A tube is a pipe tapered at both ends. Each end is threaded to allow the installation of valves, connections, or relief devices.
管道两端是锥形。每一端都车有螺纹，以安装阀门、接头或减压装置。
Flared type tube fittings--Male elbow--Assembly
GB/T5629.1-1985扩口式锥螺纹直角管接头
Flared type tube fittings--Male elbow--Body
GB/T5629.2-1985扩口式锥螺纹直角管接头体
Male connector--Assembly
GB/T3734.1-1983卡套式锥螺纹直通管接头
Male elbow for butt joints--Assembly
GB/T3758.1-1983卡套式锥螺纹对接直角管接头
Male elbow--Assembly
GB/T3739.1-1983卡套式锥螺纹直角管接头
Flared type tube fittings--Male connector--Assembly
GB/T5626.1-1985扩口式锥螺纹直通管接头
Flared type tube fittings--Male connector-Body
GB/T5626.2-1985扩口式锥螺纹直通管接头体
Flared type tube fittings--Male branch tee--Body
GB/T5635.2-1985扩口式锥螺纹三通管接头体
Male run tee--Assembly
GB/T3744.1-1983卡套式锥螺纹直角三通管接头
Flared type tube fittings--Male branch tee--Assembly
GB/T5635.1-1985扩口式锥螺纹三通管接头
Male branch tee-Assembly
GB/T3742.1-1983卡套式锥螺纹三通管接头
Flared type tube fittings--Male branch tee reducer-- Assembly
GB/T5636.1-1985扩口式变径锥螺纹三通管接头
Flared type tube fittings--Straight thread long connector--Body
GB/T5627.2-1985扩口式锥螺纹长管接头体