Oxygen/ fuel flashback arrester is a necessary safety apparatus during oxygen-fuel cutting, gas welding, iron and steel casting, and is widely applied in the transportation pipe, gas cutting and gas welding. 氧气、燃气回火防止器是氧-燃气气割、气焊、钢铁连铸等热加工过程中必备的劳动安全防护装置,在氧气和燃气输送管道、气割、气焊中大量使用。