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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
The control of stainless steel flanges should start with material reduction or hydrogen damage from the selection of materials, control technology and optimal environment, and the first choice of alloys with strong resistance to interference. The pure and high-quality steel without impurities and un
Demand for the steel industry in the second half of the year is not pessimisticThe relevant person in charge of the China Iron and Steel Association stated that the World Bank’s June 7 report once again lowered the global economy and the economic growth expectations of major developed countries