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中鋼集團總部大樓 - csc.com.tw · jis g4805 suj2專業級軸承用棒鋼,採rh高真空處理及盛鋼桶精煉渣性控制,促使鋼液介在 物充分上浮與吸附,加上澆鑄過程採取偏析減微化控制技術,優化鋼料清淨度與共晶碳化物品質,
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