Ключевые слова: bend, beside, blue, bolts, complex, connection, control, crease, diameters, drain, engineering, flanges, flow, fluid, gage, galvanized, hydraulic, joint, junction, leak, lines, manifold, mechanical, metal, meter, nuts, paint, panels, perpendicular, pipes, proof, raised, rivets, roof, side, specifications, square, tank, valves, water, wheel,