DIN 23008:1988-05 Preparation of hard coal; flotation agents; terms, requirements, verification

标准编号：DIN 23008:1988-05

英文标题：Preparation of hard coal; flotation agents; terms, requirements, verification

德文标题：Steinkohlenaufbereitung; Flotationsmittel; Begriffe, Anforderungen, Prüfung

发布日期：1988-05

标准预览图