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US6136430A Disposable water resistant cover for bulk salt 失效
散装盐一次性防水盖

Disposable water resistant cover for bulk salt
摘要:
The present invention is directed to a method for forming an inexpensive, semi-permanent cured cementitious cover layer over deicing salt which is stored outdoors in large bulk mounds or piles and a salt pile or mound covered with such a layer.
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