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The forging of flat welded flange can be divided into free forging, frog forging, extrusion, die section, closed die section and closed impact forging. The forging technology of flat welding flange can be divided into free forging, rough forging, extrusion, die forging, closed die forging and close
Hydrogenation reactor is one of the key equipment in the petrochemical industry. The material is mainly used for 12Cr2Mo1 forged steel flanges with high temperature creep resistance and oxidation resistance. Because it operates under high temperature, high pressure, and hydrogen conditions, the qual