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Puyang Donghao Mechanical & Electronic Co.,Ltd
Tongchuan, Shaanxi, China
Main products: downhole tools, oil packer, bridge plug, hydraulic anchor, screw torque anchor
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Non welded Spring Centralizer
Z331 cup packer
Packer Y521-140
Y111 straddle packer
Oil well increasing device
Y341 hydraulic oil well packer
Y221M oil packer with different workship
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cementing tools
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