Nang tanks, normally known as product chargers or N2O cartridges, are smaller, metal cylinders full of nitrous oxide fuel. Nitrous oxide has various purposes, like being an anesthetic in clinical options and for a propellant in aerosol cans. In Australia, the sale and utilization of nitrous oxide canisters are legal. https://marcoisbjr.wikiadvocate.com/6813169/the_definitive_guide_to_nang_delivery