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芯片恒温恒湿箱,增透减反射AR镀膜液,聚合物增透液,紫外UV老化箱
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溶胶凝胶镀膜液
超硬材料薄膜涂层研究进展及应用
PVC地板,是聚氯乙烯树脂和填充料、增塑剂、少量添加剂和助剂、色料为主要成分,决定材料柔软度的是增塑剂,而增塑剂的天性,低温下增塑效果很差,所以地板在低温下特别硬,甚至变脆。这是先天物性,不可改变。
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