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.
Recommend to read
THE CLOSET… UNDER THE BED
You approach the bed and out of it... skiing, manual sewing machine or a binder of old magazines, a suitcase or a heater. "Well, — the reader will say-the skeptic, is this furniture...
PLATE WITH TEETH
In the journal "modelist-Konstruktor" was published an article by a teacher from the city of Severodvinsk Vladimir Arkhipov, dedicated to the manufacture of plastic fine-grained...
