Inquiry (采购产品): Silica sand Please send me screen analysis for Oglebay Norton Industrial Sand blend "12/20". also known as APT blend "c". used for Centra-Flo sand specifications for polishing filter **** Hidden Message ***** Donald Martinage 01867 Company: Martinage Engineering Associates Inc. E-mail: d.martinage@martinageengineering.com **** Hidden Message ***** d.martinage@martinageengineering.com
