In the holes drilled in a wooden tube in the concrete wall, there is always a lot of sand and dust. To remove them will help plastic or metal tube by simply inserting it into the hole and how to blow into it (but mind your eyes!).
S. DOROFEEV, p. vokhtoga, Vologda region.
Recommend to read
REACTIVE FIRSTBORN
THE F-80 SHOOTING STAR. The story of the creation of the F-80 started in late spring of 1943 at Wright field, where the main designer firms Lockheed (Lockheed), Daniel Russ (Russ Daniel)...
HEAR COMES THE TRAIN!
Many readers of the magazine are building all kinds of model planes, ships, trains, cars and other equipment. However, for greater affinity with their prototypes it is desirable to...
