This is CLOUR Gas Welding Torch / Brazing Torch
It's a small hand torch that uses Oxygen + Fuel Gas (LPG or Acetylene).
What is it use for?
For heating, brazing, and light welding, not for cutting thick iron.
• Brazing copper pipes - This is the main use. AC technicians use it to join copper pipes for air conditioners and refrigerators. Plumbers use it for copper pipe joints.
• Goldsmith / Jewelry - Jewelers use this small torch to solder gold.
• Small brazing work - Joining thin steel, brass, copper with brass rod + borax/flux
• Heating - Heating seized bolts/nuts to loosen them, heating small parts
• Refrigeration work - The nozzles you see are for fine flame control