Gas stove before the valve is generally in what position

Valve is best not to put the cupboard, the Gas Valves pipeline should not be placed in a relatively airtight appliance, reason is flammable and explosive gas valve leak is a very easy device on cabinet leaks do not know gathered to a certain extent it will encounter fire, explosion, a gas pipeline design and installation allowed, unauthorized changes to the individual's own problems not related to the gas supply sector.