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drilling tools: square and hexagonal kellys,heavy
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Offer
Details
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| Offer Type: Sell |
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| Subject: drilling tools: square and hexagonal kellys,heavy |
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Offer Details:
drilling tools: square and hexagonal kellys,heavy weight drill pipes,spiral heavy weight drill pipes,non-magnetic intergral heavy weight drill pipes,all kinds of drilling collars,lifting subs,non-excavation drill tools,cross-over subs,many kinds of high-precision manufacturing and inspection equipmenttesting machines, universal testing machines with microcomputer displaying hydraulic pressure, and so on. |
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