1.
Pipe threads where pressure-tight joints are made on the threads
GB/T7306-1987用螺纹密封的管螺纹
2.
Pipe threads where pressure-tight joints are not made on the threads
GB/T7307-1987非螺纹密封的管螺纹
3.
Gauges for sealing tube threads
用螺纹密封的管螺纹量规
4.
Gauges for nonsealing tube threads
非螺纹密封的管螺纹量规
5.
unsintered polytetrafluoroethylene tapes for thread sealing
螺纹密封用结非烧聚四氟聚乙烯带
6.
United States standard dry seal thread
美国标准干密封螺纹
7.
Design and manufacture of hight pressure seal thread socket with large ddameter and big pitch
大直径大螺距高压密封螺纹套管设计与制造
8.
A finite element analysis of the self-sealed special hook-shaped thread of end-surface metal
端面金属自密封特殊钩形螺纹有限元分析
9.
THE STRUCTURAL ANALYSIS OF THREAD LOCKED HEAT EXCHANGERS AND DIAPHRAGM HEAT EXCHANGERS
螺纹锁紧环换热器与隔膜密封换热器的结构分析
10.
The valve outlet sealing area is also flat. The nut fits on the nipple so the shoulder of the nipple rests on the pushing surface of the nut.
阀门排气口密封区域也是平的。螺母配合在管接口上，因而管接口靠在螺母的螺纹正面。
11.
Use Teflon? tape or approved pipe sealant on threads and install new anode rod.
在螺纹上采用聚四氟乙烯密封带或通过认证的管道密封材料，安装新的阳极棒。
12.
large-size precision thread ring and plug gauge
大型精密螺纹环塞规
13.
metal bellows mechanical seal
金属波纹管机械密封
14.
rubber bellows mechanical seal
橡胶波纹管机械密封
15.
bellows sealed gate valve
波纹管密封的闸板阀
16.
bellows seal bonnet
波纹管密封型上阀盖
17.
calculation for bolt load of double-cone seal
双锥密封的螺栓力计算
18.
Avoid improper application and excessive pipe sealants such as teflon? tape and pipe dope.
避免不适当的应用和过量的管道密封剂，如特氟隆生料带和螺纹润滑油。