Inquiry (采购产品): Maching a 23 Ceramic Plate I need to Machine a 4" I.D. hole in the Center of the plate. I would like to put a spiral grove approx. 200 thosands deep. If this is possible please let me know. Thank you **** Hidden Message ***** Donald Barry 85251 Company: Modern Industries E-mail: dbarry6@cox.net **** Hidden Message ***** dbarry6@cox.net
