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. It remains only to glue them (having laid between the glass paper gasket) ordinary silicate adhesive. E. BOULUKOS, St. T e R m e s, Uzbekistan
Recommend to read
THE ASTUTE PARTNER
The weight started with the fact that the employee of the bell States telephone laboratories in new Jersey (USA) D. Hagelbarger created in the early 50-ies of the cybernetic device to...
PROTEINS ON THE SHELVES…
When books on a shelf a bit—they are unstable and fall. And folded stack of inconvenient to use: we need not so easy to remove from underneath lying on top. It is therefore desirable to...
