
If you have Minnie children – protect them from an accident by a gas or electric stove protective “fence” of wire or duraluminium corners.
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RIVET YOUR HANDS
If the steel bar drill a hole the same shape of the desired rivet, its manufacture takes only a few seconds, two or three blows with a hammer to cut aluminum wire inserted in the hole,...
CHROMIUM THEMSELVES
An extremely important piece of technology in the manufacture of engines is the coating of the friction elements of the antifriction alloys or metals. This thin layer, except for the...