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.
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TREATMENT OF GLASS WITH WIRE
I want to tell you about a rather unusual method, the obtained shaped glass without a glass cutter. Its role is performed by the wire twisting (that are attached to wooden poles...
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Unlike analog, in the boat "Victoria" from St. Petersburg to create an air cushion and propulsive forces (thrust) uses an air screw. This allows the machine to move using both static and...
