A - Material processing equipment
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B - Equipment for the production, transport and distribution of concrete, mortar and rendering mixes
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C - Lifting gear
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D - Equipment for earthmoving and soil compaction
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E - Road construction machinery
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F - Railway track construction equipment
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G - Floating equipment
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H - Tunnel and mining construction equipment
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J - Pile drivers and extractors, soil injection equipment
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K - Drilling equipment, diaphragm wall equipment
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L - Equipment for pipe jacking and pipeline construction
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M - Equipment and plants for decontamination and environment protection
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P - Transport vehicles
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Q - Air compressors, pneumatic tools
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Q.0 - Screw-type compressors, mobile
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Q.1 - Screw-type compressors, stationary
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Q.2 - Piston compressors
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Q.3 - Miscellaneous compressors
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Q.4 - Compressed-air reservoirs
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Q.5 - Accessories for compressed-air equipment
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Q.6 - Compressed-air tools and accessories
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Q.7 - Equipment for the machining of drilling tools
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Q.8 - Miscellaneous equipment, pneumatically operated
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Q.9 - Air locks and attachments for caisson operations
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Q.9.0 - Pneumatic air-locks
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Q.9.1 - Accessories for locks
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Q.9.10 - Shaft pipe for airlocks, oval cross section
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Q.9.11 - Air-lock tube, circular cross section
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Q.9.12 - Skip for airlocks
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R - Equipment for power generation, transformation and distribution
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S - Hydraulic cylinders and hydraulic units
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T - Centrifugal and piston pumps, pipelines
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U - Formwork and scaffolds
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W - Workshop machines and equipment
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X - Construction site accomodations, containers
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Y - Equipment for surveying, laboratory, office, communication and monitoring
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