1, local waste recycling station: the waste recycling station usually recycles all kinds of waste metals, including gas tanks. You can ask the nearby waste recycling station whether to recycle gas tanks.

2. Hardware store: Some hardware stores may recycle old gas tanks and treat them as scrap metal. You can ask the nearby hardware store if they recycle gas tanks.

3. Liquefied gas station: You can also go to the liquefied gas station and ask whether to recycle the gas tank. Liquefied gas stations can recycle old gas tanks for replacement or renovation.