发布时间:2025-01-30 18:44:14
可硬用少量的强水来腐蚀,强水比硫酸跟快速的夺取塑料中的氧原子。只剩下的就是碳元素。那不就变黑了嘛,另外,你要是还想简单点,就直接用蜡烛或者是火柴之类的烧,那个就快。蛋要注意安全哈
潮州自建房大路边80平米建三层框架结构不打桩主体包工包料一平方要多少钱
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