... 30MM (90%Min.).Ferro Silicon MagnesiumSi: 44-48 Mg:8.5-9.0 Ca:1.8-2.5 ... 0%maxSize: 5-30mm 90%minSi: 44-48 Mg:8.5-9.0 Ca:1.8-2. ... :1.0%maxSize: 5-30mm 90%minSi: 44-48 Mg:9-11 & 10-11% & 11-12% Ca: ... 5 Al:1.0%maxSize: 5-30mm 90%minSi: 44-50%, Mg: 5- 6%, AL: MAX. 1%. Ca: 0. ... Fe: BALANCE,SIZE: 5-30mm 90%minSi: 44-47%; Mg: 5.1-5.5%; Ca: 1.8-2.5 ... 0%max;Size: 5-30mm 90%minSi 40~45%, Mg 4~5%, Ca 2~3%, Al. 1%maxSize: ...