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Casing hinged tongs for exploration drilling
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Drill rods. Dimensions of fitting cone for drilling bits
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Hinged wrenches for boring pipes
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Subs for drilling strings
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Fishing taps and overshots for prospecting
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Steel universal drill rods. General specifications
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Casing and coring tubes for geology-exploring drilling. Specifications
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Double tube core barrels for exploration drilling. Types and main parameters
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Centring attachments for fishing instrument. Specifications.
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Machine wrenches for drill pipes. Basic parameters.
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