carpentry; general construction contracting; plumbing; facility maintenance in the nature of general construction, plumbing repairs, electrical repairs and the cleaning and repair of buildings; installation, repair, and maintenance for air conditioning systems, heating systems, refrigeration systems, dehumidification systems, electrical systems, ventilation systems, exhaust systems and boilers, excluding renewable energy generating equipment, namely, solar, wind, geothermal and hydropower energy

'air':30 'boiler':46 'build':24 'carpentri':1 'clean':20 'condit':31 'construct':3,13 'contract':4 'dehumidif':37 'electr':16,39 'energi':49,58 'equip':51 'exclud':47 'exhaust':43 'facil':6 'general':2,12 'generat':50 'geotherm':55 'heat':33 'hydropow':57 'instal':25 'mainten':7,28 'name':52 'natur':10 'plumb':5,14 'refriger':35 'renew':48 'repair':15,17,22,26 'solar':53 'system':32,34,36,38,40,42,44 'ventil':41 'wind':54

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