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    JQ-JY MECHANICAL-HYDRAULIC SHOCK SUB

    　　JQ-JY mechanical-hydraulic shock absorber is a new type double acting shock absorber, it absorbs jumping and shaking of drilling tools through compressed energy storage from two kinds of damping elastic elements which are disc spring and silicone oil, it has advantages of good maintainability, high load resistance and long service life etc. It can suit to different formation and provide the best protection for drill bits and drilling tools, and High temperature products (180oC) can also be provided according to user’s requirement.

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    JQ-YS DOUBLE WAY HYDRAULIC SHOCK SUB

    　　JQ-YS double way hydraulic shock absorber is a kind of shock absorber which can slow down or eliminate shock both in vertical and axial direction. This tool can keep the normal bit pressure and torque, therefore it can reduce the damage of drill bit, drilling tools and ground equipment due to shock, to achieve the purpose of improving drilling rate and reducing the drilling costs.

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    JZY HYDRAULIC SHOCK SUB

    　　JZY hydraulic shock absorber can use its inner compressible liquid to absorb or reduce impact and shock load on drill bit and drilling tools when drilling, so it is a kind of tool which can protect drill bit teeth, bearings and drilling tools, to prolong the service life of drill bit and drilling tools.

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    JZ MECHANICAL SHOCK SUB

    　　JZ shock absorber is a shock tool act as vertical absorbing function when drilling with cone bit or abrasive coring bit. It can absorb or slow down vertical shocking and impact load of drill stem when drilling, thereby keep normal drilling pressure, prolong service life of drill bit、protect drilling tools and surface equipment、decrease drilling cost、increase drilling efficiency.

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    CSZ SUPER FISHING JAR

    　　CSZ Super fishing jar is a kind of advanced fishing jar, which applies hydraulic and mechanical principle, adopts advanced technology, and concentrates advantages of all kinds of fishing jar. It has compact structure, reliable property and convenient to adjust, also easy to use. It is a new type upward jarring tool used in petroleum and geological explorations.

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    YJS HYDRAULIC JAR INTENSIFIER

    　　YJS type hydraulic jar intensifier is a kind of down hole fishing jar designed to increase jarring energy for hydraulic fishing jar. So it must use together with CSZ type super fishing jar. It can accelerate fishing jar above it and drill collar below it when working, so to get larger jarring force on stuck point, and reduce the shock of drill stem spring-back after jarring at the same time.

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