Underground cable bracket steel ring installation robot View：1076

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DTH drills View：1093

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Drilling rig (bionic DTH micropile) View：1097

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Drilling Rig (DR50) View：1142

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Step-by-step drilling rigs View：1094

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A clearing device for DTH drilling machines View：1232

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A kind of reclaiming cylinder device for DTH drilling machine View：1295

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A telescopic hydraulic rock drilling device View：1091

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A flying wing hydraulic impactor View：1174

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Step-by-step drilling rigs View：1141

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A multi-functional mountain micro pile drilling rig View：1186

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An integrated hydraulic shock gas slag discharge type rock drilling device View：1221

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A self-tightening drill bit View：1170

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A high-strength bearing View：1121

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Reciprocating pump split type rolling bearing crankshaft assembly View：1039

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A roller shaft assembly with emergency stop function View：968

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