optics of metals 中文意思是什麼
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Producer of high purity metals and chemicals used in electronics, fiber optics, and semiconductors. products include germanium, germanium tetrachloride, germanium oxide, arsenic, antimony, copper, cadmium and tellurium
-擁有轉爐和電爐鋼兩個生產系統，包括礦山采選燒結焦化煉鐵煉鋼連鑄軋材以及相應的動力運輸機械建築安裝等。
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