1.
reducing extension piece
异径内外螺纹管接头
2.
female-male reducer
两端分别带有内外螺纹的大小头
3.
Design of Injection Mold with Auto-Stripping Inner and Outer Screw Mechanism By Oil Cylind
油缸式自动内外螺纹脱模注射模设计
4.
" Motor vehicles-Hydraulic braking systems-Pipes tapped holes, male fittings and hose end fittings"
GB/T11611-1989汽车液压制动系金属管、内外螺纹管接头和软管端部接头
5.
external and internal thread grinding machine
外螺纹及内螺纹磨床
6.
The male and female joint confines the gasket O.D and I.D.
这种外螺纹和内螺纹连接限制了垫圈的外径和内径。
7.
Standard joint is a circular male and female configuration with a corrugated metal gasket.
标准连接是圆形外螺纹和内螺纹结构，配置波纹金属垫圈。
8.
Situation of technological develop ment of welding internal -thread cop per tubes and seamless internal -thread coppertubes at home and abroad
国内外焊接内螺纹铜管与无缝内螺纹铜管的技术发展状况
9.
The circular male and female bonnet joint is self-aligning and encapsulates the gasket.
圆形外螺纹和内螺纹阀盖连接是自行对准调整并且封装的垫圈。
10.
Nuts have internal (or female) threads to match those of the Bolt.
螺母上有内(或阴)螺纹,与螺栓上的螺纹相啮合。
11.
A pipe coupling threaded on both ends.
螺纹接头一种两端都带外螺纹的管子
12.
internal ribbed tube
内肋片管，内螺纹管
13.
(2)adopting barb thread design to improve the tensile- and compression-strength and to prevent unscrewing of the casing;
②采用倒钩螺纹设计 ,提高了螺纹的抗拉和抗内外压能力 ,可防止套管倒扣松动 ;
14.
THREAD MAJOR DIAMETER IN MILLIMETERS
螺纹外径单位用公厘时
15.
Taper pins with internal thread
GB/T118-1986内螺纹圆锥销
16.
Parallel pins with internal thread
GB/T120-1986内螺纹圆柱销
17.
NPSI (American Standard Internal Straight Pipe Threads)
美国标准内直管螺纹
18.
inside screw lift check valve
内螺纹升降式止回阀