manufacture of chemical raw material
Chemical Raw Material Variety 化工原料品种齐全 Manufacture of Chemical Raw Material 化学原料及化学制品 chemical raw material industrial chemicals 化工原料 ..
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manufacture of chemical raw material
化工原料制造
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The chemical composition, manufacture process, raw material selecting and the performance of the asphalt-polyurethane rigid foam for insulation and anticorrosion of building were introduced.
介绍了建筑业保温防腐沥青聚氨酯硬泡体的基本配方、制备工艺、原料选择及性能指标。
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