SNI 06-1319-1989 Polyurethane resin for synthetic leather《人造皮革用聚亚安酯》.pdf

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DIN 55482-1-1989 Cellular polyurethane for use in packaging requirements and testing《包装用聚亚氨酯泡沫塑料 第1部分 要求、检验》.pdf

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