Installation and repair of air conditioning apparatus; boiler cleaning and repair; building construction supervision; insulating buildings; sealing buildings; cleaning of exterior and interior surfaces of buildings; installation and repair of burglar alarms; maintenance and repair of burners; anti-rust treatment for vehicles; lubrication of vehicles; cleaning of vehicles; polishing of vehicles; maintenance and repair of vehicles; washing of vehicles; rental of construction equipment; provision of construction information; damp-proofing of buildings; drilling of wells; installation and repair of electric appliances; installation and repair of elevators; mining extraction; factory construction; installation and repair of fire alarms; installation and repair of freezing equipment; installation and repair of furnaces; installation and repair of heating equipment; provision of repair information; installation, maintenance and repair of machinery; construction and maintenance of pipelines; vehicle service station services; ship building; underwater construction and repair; all included in Class 37.;
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