pin-to-box pipe

pin-to-box pipe

阳螺纹-阳螺纹管子

boxpin connection

阴螺纹-阳螺纹连接

male and female cross

阳螺纹-阴螺纹十字接头

pepe bend with male and female thread

一头带阳螺纹一头带阴螺纹的弯头

box up and pin down

上部阴螺纹-下部阳螺纹接头

pin-to-pin reducer

两头阳螺纹的大小头

double pin sucker rod

两头阳螺纹的抽油杆

A pipe coupling threaded on both ends.

螺纹接头一种两端都带外螺纹的管子

Tubing thread is available for API tubing threads and TM threads.

油管螺纹可采用API油管螺纹，或TM螺纹。

NPT tapered tube thread gauges

NPT锥管螺纹量规

Apply pipe dope sparingly on pipe threads, never on valve threads.

在管道螺纹上涂敷螺纹油，但是不要在阀门螺纹上涂螺纹油。

Pipe threads where pressure-tight joints are made on the threads

GB/T7306-1987用螺纹密封的管螺纹

minimum number of pipe threads for connections

管螺纹连接的最少螺纹牙数

Pipe threads where pressure-tight joints are not made on the threads

GB/T7307-1987非螺纹密封的管螺纹

Gauges for sealing tube threads

用螺纹密封的管螺纹量规

Gauges for nonsealing tube threads

非螺纹密封的管螺纹量规

external and internal thread grinding machine

外螺纹及内螺纹磨床

small bundles of spiral vessels

螺纹导管的小维管束