1. Nozzle interface 2. Front body of the torch, 3. Regulating valve overall controls flame 4. The gas flow control knob 5. Inlet interface : joint for gas in, connect the standard of the gas tube which is the high quality PVC tube 6. The inlet pipe sealing cap : Screw cap for seal up gas tube 7. Gun holder shelf : Used as spanner for screw the nozzle 8. Flash-back arrestor in second-line for safety, When the un-backfire set inside of the torch is bad. it will bring into play