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
TANK “TYPE 98” ARMY OF CHINA
The Chinese tank "Type 98" is considered a model of armored vehicles of the third generation. The engineering of this started back in the 1970s, Then developed experimental tanks WZ-and...
HOW TO REPLACE THE GRILLE?
The ventilation grille is not very decorate your kitchen, no matter from which it was made of metal, plaster or plastic. And if you have a gas stove, just a few weeks, the lattice turns...
