What I have used is a plumbers copper fitting brush. They come in variety of sizes. You knock the handle off the brush, then put the wire end of the brush in a cordless drill chuck. Also, you can wrap scotchbrite around the wire brush for finer finish.
Hi
I have been a plumber for 15 years, and carried a "B" sized acetylene tank in my car. What you need to be aware of, is that in a collision of sufficient force, the valve on top of the tank can be broken off. In this situation, the tank can become a rocket. I have heard of the full sized...
Hi
Looks just like my Allied jack. It's made in China, and a Cali company imported it. Now discontinued, seals, and other parts are no longer available. The model number should be on the silver tag on the side. Google them and verify with the model number.