Construction and mounting the nail dowel for fixing metal structures to concrete made from hardened steel. If you release hardened on the fire and sharpen the head a certain way, and then tempering it — get a perfect tool to the drill for figured wood and soft metals. L. MOROZOV, G. Samara
Recommend to read
SIKORSKY S-76
In 1974, the firm Sikorsky started to create on the basis of a military helicopter S-70 the first commercial passenger 12-passenger helicopter. When designing new machines, great...
THE ENVELOPE OF METAL
Its really easy to bend the tin, and even better — from a thin sheet of colored metal, but of course not for sending by post. Make at the top, not a bent valve, the opening and...
