@634844fdf
ポバールとクラレポバール:特性と用途の徹底解説 | #クラレポバール
食品包装用バリ写真またはフィルムの利点を写真で説明する | #食品包装用バリアフィルム
変性ポリビニルアルコール:概要と応用 | #変性ポリビニルアルコール
微粉PVAとPVOHの特性と応用 | #pvoh
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