37 Rental, leasing, repair, and maintenance of ice-resurfacing equipment and parts and dump attachments therefor; rental, leasing, repair, and maintenance of ice-edging equipment, ice-painting equipment, and parts and supplies therefor; improvement, repair, and maintenance services for ice-rink facilities; technical consulting services in connection with the operation, repair and maintenance of ice-resurfacing equipment, ice-edging equipment, and ice-painting equipment; consulting services in connection with the construction, improvement, repair, and maintenance of ice-rink facilities