Ecvv Trade
the pre-existence of Tianhe Petroleum Machinery Joint-Stock Co., Ltd

China Manufacturer with main products: Drilling Tool, Fishing Tools, Such as Stabilzer, Bucking Unit, Drill Collar, Heavy Weight Drill Pipe, Casing Scraper

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Surface Bumper Jar

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The DJ type surface bumper jar is a kind of stuck freeing tool for surface down jarring . it is connected with drill stem section, the jarring force is adjusted n surface . Owning some feature such as big jarring force ,easy operation ,make it especially suitable for stuck freeing of keyboard.
DJ46B(4 3/4)
O.D. (mm)
Max.jarring force MN (tf)
 Sealing pressure Mpa
1500( 59)
Threads API
Closed length (mm)

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