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
ASSISTANT FORECASTER
Weather service uses a variety of research methods. One of them is the distribution of atmospheric parameters on height. To quickly solve this problem scientists helps small...
KAMOV Ka-50
His first flight of the day anti-tank helicopter the Ka-50 made in 1982. When designing the machine was seen as an alternative to the American helicopter Ah-64 "Apache", and the testing...
