Yuhong raymond mill: 1.econamical&duarble 2.fine powder produced 3.wide application 4.CE certificate, ISO 9001 IntroductionHigh pressure overhang roll mill is used for grinding the barite, limestone, kaolin, ceramics, and slag, etc, with the hardness below scale 9.3 of Mohs and 280-odd sorts of non-inflammable and non-explosive stuff in the trades of mining, metallurgical industry, chemical ...