That are combined

After this area of ​​the compounds, you need to clean with sandpaper from rust or fats. After that, tightly fit the sheets that are combined to each other. Then with a brush that is moistened with chloride zinc, clean the connected surfaces. Rubbed a hot soldering iron with ammonia and very smoothly apply the solder with the end of the soldering iron to the ends of the sheets that you want to solder. After that, you need to wait when everything cools down and saw off the sneakers to saw off the soldering iron.