What kind of carbide carbide cutting head is used for cutting concrete
so that the hardness of the solder joint and the mother material is almost, and then YT5 turning, you can!
There is welding, the best use of gas welding to the local heating to more than 400 degrees, the flame directly heated about 3 minutes, and then covered with wood flour
However, if the surface of a large number of steel castings, or a lot of sticky sand, it is recommended to use gas welding and other heating tools on its surface heating to 60 degrees Celsius, in the processing,
