短語(yǔ)詞組短語(yǔ)polyvinyl butyral modified resin 聚乙烯醇縮丁醛改性樹(shù)脂butyral l resin 丁縮醛樹(shù)脂Polyvinyl Butyral Resin 聚乙烯醇縮丁醛樹(shù)脂;烯醇縮丁醛 返回 butyral resin