This initial reaction or oxidation resists further chemical reaction on the metal surface.
初始的反应或氧化可以抵制材料表面再进行化学反应。
Gray powder metal, pure, without any visible inclusions and oxidation color.
灰色粉末状金属,纯净、无肉眼可见夹杂物及氧化色。
Gray powder metal, pure, without any visible inclusions and oxidation color.
灰色粉末状金属,纯净、无肉眼可见夹杂物及氧化色。
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