Type Q3 1/2-17/90 manual tong is used for making up or breaking out the screws of drill tools and casing joint or couping .It can be adjusted by changing lug jaws latch and latch steps . ...

Dongying Lake Petroleum Technology co.,ltd    [Mechanical Parts & Fabrication Services]   [Forging]   [2018-05-25 14:19:31 ]

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