Chemistry 4 Mineral acid cleaning and passivation can be performed for iron oxide removal or passivation.

化学作用4：可进行无机酸清洁和钝化以去除或钝化氧化铁。

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Chemistry 4 Mineral acid cleaning and passivation can be performed for iron oxide removal or passivation.

化学作用4：可进行无机酸清洁和钝化以去除或钝化氧化铁。

youdao