... diamond,Positioning hole,Cooling holeShapeOG-2G-3G wheel,Trapezoidal Wheel (FA) ,Pencil Eage Wheel(PE) ,Peripherial Segmented Wheel (FE wheel ),Peripheral ... , 180, 240, 320 CompanyEstablished in 1990,Zhecheng Hongxiang Superhard Material Co., Ltd is a specialized enterprise that engages in the research, production ...