... wheel: for Germany, Japan, the United States and domestic grind camshaft machine tools, grinding wheel specifications Φ200 ~ Φ500mm, ... grinding wheel: Germany, the United States, Japan and domestic mill crank machine tools, grinding wheel specifications Φ400 ~ Φ700mm, ... , gem, semi-conductor materials, non-ferrous materials and non-metallic grinding, cutting or electrolytic grinding.CBNFor grinding ...