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
BOSSART AGAINST THE QUEEN
31 October 1945 the technical Department of the Us air command (the name of the U.S. air force) requested the leading firms, they create new weapon systems capable of hitting targets at...
AVAILABLE FOR BEGINNERS OR RACING FLAT FUSELAGE
For a year came into effect new rules on aviation sports, which legalized "school" subclasses of cord aircraft. One of them circuit racing vehicles. Different from "adults" only permit...
