Unverified88% confidenceDecision RuleTime unknown
美缝发黑发黄多为霉菌深入渗透，需选含次氯酸钠（有效氯≥5%）的除霉凝胶型产品，凝胶质地能附着在竖直缝隙上停留15-30分钟渗透，普通液体喷雾会流走无法起效
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