AJ-type connector is connected to the safety of fishing tools, packer and drill collar (normal drilling) and the jar on top of a mine under the security tools. When the fish is off the cards
Pear-shaped tube device part of the work up to the big end cone. When the drilling pressure, the cone part of the big end and casing deformation in contact lateral force generated by the moment, Bulge
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Contact: Mr. Wang
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Website:www.yzright.com.cn
Address: No.5 Dingsheng Road, Shaobo Industrial Park, Jiangdu District, Yangzhou City
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