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Articulated walking wheel box system for overlapping shield tunnel hydraulic support trolley
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Articulated hydraulic supporting mechanism for overlapping shield tunnel hydraulic supporting trolley
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Be used for box roof beam welded mechanism
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Test method for welding cold crack sensitivity of hydraulic support structural part
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Handling device of leading support
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Method for machining U-shaped groove in U-shaped seat for hydraulic support
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Tunnel lining trolley variable-width portal frame system
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Processing method for blanking hydraulic support plate by using numerical control flame cutting machine
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Multi-working-condition template of tunnel lining trolley
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Frock suitable for horizontal deep-hole drilling machine
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Deep-fusion fillet welding process for welding medium plate of hydraulic support structural part
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Combined boring bar
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Assembling and welding tool for roller hub of gas pumping and discharging machine
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One kind being used for bogie casting integral assembling welding mechanism
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One kind being used for lining trolley bulkhead height adjustment device
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The plug-type grouting system of tunnel lining trolley
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Anti-impacting upright column with high resiliency detachable apparatus
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Buried water stop plug board mold in tunnel lining trolley installation
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A kind of processing tool of inclined hole block
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A kind of tunnel lining trolley adjusts the device of sealing plate height
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