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Single-arm double-drill hydraulic drill carriage
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Hydraulic drill carriage having good dustproof effects
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Deviation feedback device for drill rod of hydraulic drill carriage
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Hydraulic drill carriage drill arm moving fulcrum metamorphic mechanism
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Automatic synchronizing device of hydraulic drill carriage drill rod
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Drill boom sliding metamorphic mechanism of hydraulic drill carriage
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Hydraulic drill carriage drill arm adding connecting rod metamorphic mechanism
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Hydraulic drill rig propulsion and rotation feedback synchronization device
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Hydraulic drill rig dust collecting pipeline automatic dust removal device
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Hydraulic drill rig coarse filter linked slag discharge device
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Hydraulic drill rig dust catching hood lifting metamorphism mechanism
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Drill rod rotating mechanism of rock drill connected by tooth profile shaped surface of swing active gear
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Drilling machine advancing mechanism for profile connection of eccentric wheel push rod roller oscillating tooth inner gear profile
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High-order elliptic surface connection and drilling machine propelling mechanism using same
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