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
PIGGY RAIN
Most gardeners under the gutters certainly are cumulative barrels to collect rainwater from roofs for irrigation reserve, and in case of fire — water at hand. It's a pity, when the heavy...
Energy is for nothing
Water, wind and sun are the most accessible and inexhaustible sources of energy that nature gives to humans. It is no coincidence that in recent years they have again received the closest...
