金铝圈表面氧化处理。
该复合材料的制备方法，其步骤如下：1）炭黑表面氧化处理；
The preparation method comprises the following steps of: 1) oxidizing the surface of the carbon black;
通过该方法，能够有效且充分地洗掉附着在实施表面氧化处理的热镀锌钢板的表面的酸性溶液。
By this method, an acidic solution adhered to the surface of the hot-dip galvanized steel sheet after the surface oxidation treatment can be efficiently and sufficiently washed out.
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