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
SOKOL
"Dear edition! I have been modeling, build kordovye-models, flight a big request To you — please let us know what new model airplane engines went on sale in 1973". V. Vasiliev. Chita...
NEW LAMP MADE FROM OLD PARTS
Fluorescent lighting is much more economical and durable than conventional incandescent lamps. Especially when equipped with modern fluorescent lamps (LDS) with a cap, which fits easily...
