Content of hexavalent chromium is lower, pollution to theenvironment is reduced. 鈍化液中鉻酐含量較低，減少了對環境的污染。
Organic resin was used instead of chromic anhydride in the orthogonal experiment for research on non-chromate Dacromet technology. 摘要以有機樹脂代替鉻酐，在無鉻達克羅工藝研究中進行正交試驗。
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