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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The journal "modelist-Konstruktor" write for a long time, almost from the very origin; learned a lot of useful for yourself. In response to your appeal to be not only a reader, but the...
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