Ключевые слова: background, bind, bolt, engineering, fasten, grap, hexagon, hold, industry, iron, keep, knot, matel, mechanical, mile, noeud, nut, oxides, pattern, patttern, pentagon, polygon, press up, push up, rust, screw, sea, secure, seize, six sided, spiral, spring, steel, stick, strand, thread, tool, twist, washer, white,