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Products > bits. > H&D Machine Co., Ltd. | Similar Products

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HD-t100b Tractor Drilling Rig: swivel that circulation drilling fluid and bearing chamber are separate reduces damage probability of bearing. 6、 Turbo-charge design to chassis engine can make up the power loss in plateau area. So ...

HD-20d Man Portable Reverse Circulation Drilling Rig: Drag bit and DTH hammer will be used for soft fofrmation, soft gravel formation and scree formation. 6. Use lithium battery with big capacity to reduce weight at max limit. 7. New design of power ...

HD-40a Man Portable Drilling Rig: big capacity to reduce weight at max limit. 6. New design of power swivel that circulation drilling fluid and bearing chamber are separate reduces damage probability of bearing. Main ...

HD-30A Man Portable Drilling Rig (Coring): bit drilling. 5. Use lithium battery with big capacity to reduce weight at max limit. 6. New design of power swivel that circulation drilling fluid and bearing chamber are separate reduces damage ...

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