Material: Aluminum, the product surface oxidation process, the leather material: PU leather.
产品材料：铝、产品表面氧化工艺、皮革材料：PU皮。
The effect of heating process on surface oxidation of copper-bearing steel was studied.
研究了加热工艺对含铜钢表面氧化的影响。
The effect of heating process on surface oxidation of copper-bearing steel was studied.
研究了加热工艺对含铜钢表面氧化的影响。
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