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
PLOWMAN SLOPING FIELDS
Now, as strengthening the material-technical base of agriculture, in all growth, the challenge to improve its efficiency, to improve all quality indicators. This requires... care about...
STARTED WITH BALLOON
It was built of plain newsprint. This simple design N. V. Rumyantsev, the head of one of clubs of young technicians of Ryazan, was able to captivate the children, introduce them to...
