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
SAILING… WIND GENERATOR
They say that the new is the well forgotten old. And energy seems to be no exception here. Having burned itself at Chernobyl and faced the threat of an energy crisis in a number of places,...
BUILDING A CAR
(Continued. Beginning at No. 10, 1975) 5. THE MOST CRITICAL NODES Traffic safety and ease of control of desired self-made car, probably even more than serial. After all,...
