It introduced PVB colophony's physical and chemical property, dissolvable plasticizer, quality standard and the relationship between chemical groups.

介绍了PV B树脂的物性、化学性质、相溶的增塑剂、质量标准、基团间的相互关系等性质。

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Thispaper also gives the details about the upper leather technology of dog skin with poor hair, the chemical and physical testing standard and outline property.

文章以狗板皮正鞋面革为例，对狗板皮制革工艺。成革理化指标及革的外观性能作了较为详细的介绍。

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