兑水 发表于 2009-10-21 16:00:37

ASTM D 6099-2003 聚氨酯原材料的标准试验方法:中酸度至高...

D6099-03 Standard Test Method for Polyurethane Raw Materials: Determination of Acidity in Moderate to High Acidity Aromatic Isocyanates
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