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Alignment device and alignment method for butt welding of H-shaped steel
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Adjustable pre-buried device for reserved hole and using method thereof
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Steel bar fixing and displacement preventing device and using method thereof
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Operating platform for adjusting position degree of rod piece end plate mounting hole and operating method thereof
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Special formwork system for coke oven foundation top plate and construction method
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Asphalt waterproof coiled material paving compaction machine
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Narrow and small space electric material transporting and conveying device
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Pneumatic jacking outer protective structure of high-rise structure
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Special movable shed cover for winter construction
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Prevent hanging hoist transmission unit that prop up formula steel truss platform descending card hinders
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Device capable of converting fillet weld into flat weld and welding deformation control method
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Fire extinguishing device for garage
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Antidetonation machinery vehicle storehouse
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Steel pipe column for stereo garage and installation method thereof
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Machinery vehicle storehouse fire control unit
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Reinforcing bar cuts device for construction
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Motor shell with high hardness
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Dust removal equipment for hot blast stove
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Wiggins gas chamber's installation base
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Wiggins gas holder convenient to maintenance
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