适用于试验室对煤样、矿样等颗粒物料的缩分有较强的均匀性，提高缩分效率和质量，依据GB474《煤样制备方法》生产。
It serves division of granular materials such as coal, ore samples in laboratory. It can improve division efficiency and quality. It is prepared according to coal sample preparing method in GB474.
适用于试验室对煤样、矿样等颗粒物料的缩分有较强的均匀性，提高缩分效率和质量，依据GB474《煤样制备方法》生产。
It serves division of granular materials such as coal, ore samples in laboratory. It can improve division efficiency and quality. It is prepared according to coal sample preparing method in GB474.
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