... 密封件公司 l' unite hermetique; unite hermetiquel' 套管密封件 casing seal 橡胶密封件 rubber seals ...
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Flexible waterproof casing seal 柔性防水套管密封圈
lead seal casing patch 铅封式套管修补器
seal casing 密封盖
lead seal casing patch tool 铅封式套管修补器
gas seal casing 气体密封套
slips seal casing hanger 卡瓦密封套管悬挂器
Conventional connector for casing string can't meet the demand of seal and connection in solid expandable tubular and presented a new thread structure for an expandable casing connector.
传统的套管接头不能满足连接与密封要求，并设计出了一种新型的膨胀连接螺纹结构。
PW, PWF mainly by the pump cover, pump casing, impeller, shaft seal, shaft, and bracket the composition of such components.
PWF主要由泵盖、泵壳、叶轮、轴封、轴、和托架等零部件组成。
A device used on the outside of the casing of a well to seal off formations or to protect certain zones.
为封堵地层或保护某些层段在井内套管外面所用的装置。
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