Supply, installation, maintenance and repair of apparatus and equipment in vehicle fuel distribution outlets and service stations including wholesalers and retailers of petroleum fuels (liquid and gas) and equivalents, diesel and equivalents, and energy supplies for electric vehicles; including the aformentioned services relating to underground storage tanks, dispensing (pipes, valves and safety valves) and delivery (bowsers, pumps dispensers), monitoring systems for monitoring system status (such as fuel leaks), controlling and recording systems for sales of fuel and energy including back office systems for recording sales details from the dispensing point to the sales office, and wiring