... to meet all likely customer requirement. Thickness (mm)Diameter (mm)< 2.00normal: 190.5, 197, 203, 216, 222, 229, 235, 238 ... , 435, 456, 465,484, 485, 489, 490.517For ovals1.75 — 3.00normal: 198x211, 242.5x159.5, 144x157, 160x173. Sample pieces available ...