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Polyurethane foam plastic for e.g. industrial structural material and high grade building material comprises residue obtained from reaction of heterocyclic polyol and polyisocyanate, and flame retardant or flame retardant polyol. 专利
申请日期: 2013-01-01, 公开日期: 2013-08-14
作者:  JING J ZHU X
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