Details of the processing of tin will need a small jig from two pieces of plexiglass with holes for pins. The sheet metal of the workpiece is placed between the strips connected on the pins, and the entire package is clamped in the vise. Then you can operate a needle file or a file without fear that the item will get wrinkled.
P. MARACHEV, Perm
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Good protective glass on the shield or the mask of the welder can be done independently. To do this, cut out two Windows of the same size that the visor or mask, and smoke one of them....
