
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
RAINBOW IN LAMP
Psychologists have long determined that the health of a person, his emotional state during labor or active vacation influenced by the color of the surrounding objects, walls, floors. For...
NOT A BUTTON, AND WEDGE
How often in the lectures or lessons on a stand, posters and other visual AIDS? Of course, stationery buttons! In recent years, however, they comes to the aid of sticky tape. However,...