The wireline retrievable drill lock assembly is the heart of the casing drilling system.
带电缆可回收的钻井锁组合是套管钻井的核心部分。
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This article introduces the V type adjusting hydraulic cylinder mechanical lock equipment of casing and coupling production line which imported from PMC. USA.
介绍了从美国PMC公司引进的套管接箍生产线中V型座调整机构的液压缸机械锁定装置。
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For receiving said lock pin stretching inward from the casing and said end cover, at least one first and one second positions are limited.