... feature high strength, good toughness, and high resistance to corrosion, high pressure and temperature. The raw materials of them come ... into carbon steel, stainless steel, and alloy steel, low temperature steel and ... TOP METALWORK CO., LTD.ProductsFlanges, Elbows, Tees, Concentric and Eccentric Reducers, Pipe Caps, Bends, Gaskets, Valve parts ...