... equipments, extractors etc., which made of carbon & alloy steel, stainless steel. The pressure vessels, columns, reactors, towers, heat exchangers ... of China; 2.Manufacturing License of Nuclear Pressure Component P.R. of China; 3.ASME Certificate with ... as special material (Monel, Inconel, Incoloy, Hastelloy, etc.), stainless steel ( duplex stainless, UNS31803, SAF2205, SAF2507, etc. ), high stainless ...