Procédé de fabrication de bims à pores fins à partir de scories industrielles.
申请公布号:BE578718(A1)
申请号:BE19590578718
申请日期:1959.05.14
申请公布日期:1959.08.31
发明人:FRANZ XAVIER NICHELS
分类号:(IPC1-7):E04C
主分类号:(IPC1-7):E04C
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