Abstract A lightfast aq. polyurethane emulsion for leather finishing was prepared mainly from aliphatic isocyanate.
选择脂肪族异氰酸
为主要原料，制备了一种耐光型水性
皮革涂饰剂。
Abstract A lightfast aq. polyurethane emulsion for leather finishing was prepared mainly from aliphatic isocyanate.
选择脂肪族异氰酸为主要原料，制备了一种耐光型水性皮革涂饰剂。
声
：以上例句、词性
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