发布时间:2025-02-07 02:43:19
柔丝棉肯定不是全棉,是植物纤维在加工后混合棉制成的织物,但一般上说含棉量75%行业上就叫他纯棉了。这个就看混合比例了
schneiderc65nc63 50hz 漏电空气开关怎么接线
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