1. Body
2．Thermal baffle：To prevent heat to diffuse into the inner of machine.
3 .Cross feeding hand wheel
4.Two-port valve：To adjust the flow.
5. Hoses：Connect them to gas distributor. There are three hoses: preheating oxygen hose, fuel gas hose and cutting oxygen hose.
6.Gas distributor：Gases are: preheating oxygen, fuel gas and cutting oxygen.
7. Speed regulating knob：Decrease the speed along “10” toward “0” anti-clockwise.