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how do blow torches work Answered

Hi I need help see I have been on the internet for days looking for a diagram, or someone, that could tell me how a blow torch works. Like if there is pressurized air in it, as my friend tells me but he's not a very reliable source. So please if you know such information or have a diagram of it I would be very thankful.


Yes! thank you one of those links had just what I was looking for! sorry I couldn't get back on to soon.