Cast in many industrial products have long been used mortgages (anchor) bolts with special heads, such that not only pull, but rotate can’t.
With the advent of high strength composite self-hardening compositions that bolt you can “lay” in the body of the finished product (plastic or metal) and making it pre-nest, and then simonaityte.
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AND HAMMER — EASY
Even firmly planted on the wooden handle of a hammer eventually relaxes from the shock and shrinkage of wood. Again to strengthen it will help the screw, screwed in the center cross,...
Solar-powered dryer
Fruits are dried in different ways. Most often — by the air-solar method, which, besides obvious advantages (simplicity, availability, etc.), has well-known drawbacks.
The proposed...