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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AIR FERRY
Once in the journal "modelist-Konstruktor" I read the article "the Farmer's sloping field." The air route is very much needed in the highlands. But in nature, there are many horizontal...
The SNOWMOBILE? The AIRBOAT? AMPHIBIOUS!
Readers of "M-K" have already had the opportunity to meet with a student design Bureau Mari Polytechnic Institute (see No. 8, 1977). This team is many years engaged in the original...
