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
GLIDER “CD”
This svobodnymi glider — simple, durable, reliable and moderately "volatile" — was created as a training. It was assumed that newcomers in the process of its manufacture and operation...
PIONEER THE CONVOY
Just a few months there at the House of pioneers the village of Elkhotovo in North Ossetia ASSR circle technical design. During this time the guys have created a garden tractor for a...
