How to help the welding rod.
No way！ The most simple to small oxygen welder must be melted copper can be strong, a set of about more than 200
Welding contact surface should be polished, it is best to have flux, a treasure on the use of search methods, a treasure also has instructions
Welding contact surface should be polished, it is best to have flux, a treasure on the use of search methods, a treasure also has instructions
