20m Deep Kelly Bar Drilling Sr150 Sr200 Sr238 Sr285 Sr405 Interlocking

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20m Deep Kelly Bar Drilling Sr150 Sr200 Sr238 Sr285 Sr405 Interlocking

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20m Deep Kelly Bar Drilling Sr150 Sr200 Sr238 Sr285 Sr405 Interlocking

1. Material: Q345B or 35CrMo 2. Type: Interlocking kelly bar, friction kelly bar, combined interlocking and friction kelly bar, square kelly bar, etc customized as per requirement 3. Application: ...

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20m deep kelly bar drilling

kelly bar drilling interlocking

20m deep interlocking kelly bar

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