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
ANTI-THEFT – IN 5 MINUTES
After reading No. 1 "M-K" for the year 1989 description electronic switch-off "weight" of the car, decided to use it as a simple anti-theft tool. However, the replacement of toggle on...
SAUNA FOR BEES
Almost twenty years of experience in the design obsut Chernihiv circle of agricultural modeling. Over the years the students under the guidance of their mentors have designed and built...