Sleeve-type expansion device is destroyed keyway keyway, keyway to prevent sticking of the main tools. Keyway sleeve-type expansion is controlled by a two-part mandrel and sleeve
LQ-type three-function device is a salvage salvage cup, magnetic devices and grabbed three functions salvage with a new combination for the tool
The integrated mandrel sleeve replaceable stabilizer consists of an integrated mandrel and a sleeve, wherein the sleeve is screwed on the shoulder of the mandrel through threads. This structure design
The RTQSC-114 siftable ash bridge plug is a downhole ash plugging tool for oil fields. It is mainly composed of a setting mechanism
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