... Straight Centrifugal Coarse Powder Grinder ***Raw Materials: carborundum, zirconite, quartz, granite, barite, marble, limestone, talc, gypsum, slag, porcelain ... , etc. ***Application: Silica sand, foundry sand, grinding apparatus and abrasive sand and other fine sand industry Straight ... and other traditional mill equipments. ★MGZ series Straight Centrifugal Coarse Powder Grinder is designed by ...