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
Tripod in Your Pocket
Think how many interesting shots end up spoiled or even never taken because of insufficient lighting. If only there were a tripod… A gadget that weighs just a couple of dozen grams will...
CONTROL LINE SPEED
Master of sport international class, world record holder Vladimir Malinkin today recognized as the leader of korovikov, speakers with high-speed models. Although Volodya was...
