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
UNUSUAL STARTER
Currently, there are about two dozen different starters. The purpose of all of this is to facilitate the launch of capricious model of micro-motors internal combustion. However, having...
FUN FOR ADULTS
Shown in the figure and pattern of a simple toy has survived from the ancient Celts. Most interesting is that it was a pleasure to play not only children but adults as unusual properties...
