When the pipes are well prepared, the gasoline welding torch could be set up. The appropriate gas gasoline and oxygen flow prices needs to be chosen depending on the thickness of your pipes. It is necessary to follow the maker’s Directions and protection suggestions when starting the gasoline welding torch. https://www.malleableiron-pipefitting.com/industry-knowledge/how-to-connect-non-threaded-galvanized-pipes.html