This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.
讨论了用二氯甲烷替一氟三氯甲烷进行软质氨酯泡沫塑料的。
This article is a study of methylene chloride as a substitute for trichloro-fluoromethane in producing flexible polyurethane foam.
讨论了用二氯甲烷替一氟三氯甲烷进行软质氨酯泡沫塑料的。
Polyurethane foaming box ensures good heat preservation capacity, and so ice cubes become more melting-resistible and can be stored longer.
氨酯发泡箱体,保温性能好,储冰时间长,不易融化。
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