In construction you often have to deal with the internal measurements. For example, to determine the distance between the form panels, the value of the window or doorway. A good assistant in such cases would be sliding ruler, made of tube and metal rod with applied risk. V. ANTIPIN
Recommend to read
UNIVERSAL BUBBLE
Large plastic bottles of beverages which are colloquially called bubbles, is a wonderful semi — finished products for a variety of home-made articles. I commonly use them cutting into...
SMZ S-3A
The second world war has resulted in the emergence in our country of a completely new class of vehicles — sidecars, designed primarily for disabled veterans. The first model, called...
