我公司可按用户的要求提供各种型号的钻杆接头。各项力学性能均完全超过API标准要求。
We can provide various types of drill pipe joints as customer's demand. All mechanical properties are beyond API standard.
在分析研究了国外各种电接头设计的基础上，根据电接头工作状态和环境，重新设计出一种新型电接头。
Based on analyzing various overseas designs of electrical connectors and their working conditions, the author redesigns a new type electrical connector.
各种各样的伸缩接头被安装在蒸气管道上了。
Expansion joints of various kinds are fitted on steam pipes.
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