Sr40 Sr60 Sr70 Interlocking Kelly Bar In Drilling Engineering

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Sr40 Sr60 Sr70 Interlocking Kelly Bar In Drilling Engineering

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Sr40 Sr60 Sr70 Interlocking Kelly Bar In Drilling Engineering

Interlocking Kelly Bar No. OD Section Way of crowding Length of per section(m) Drill depth Torque 1 ¢299 3 4 (interlock-type) 9-12 24-45 100 -120 2 ¢342 3 4 (interlock-type) 9 - 12 24-45 100 -120 3 ...

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sr40 interlocking kelly bar

engineering interlocking kelly bar

drilling engineering telescopic kelly bar

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