... .size:4",5",7" 3.single row 4.cup wheel We have the following workshops: 1. Workshop 1: diamond electroplated ... wheels,diamond profile wheelsdiamond vacuum brazed toolstile bits, marble bits,hand padsdiamond files,diamond sintered carving burrsflexible polishing pads (wet pads ... Japan, Germany, the USA and Australia Diamond Single Row Cup Wheel 4",5",7"