... and polishing of silicon piece,crystal quartz,optical glass,sapphire piece,ceramic piece,glass and other hard and fragile materials.1,Frequency ... =170 PCD51010: Carries5 PCS/Set5 PCS/Set11: Machine size1850L·2300W·2950H1850L·2300W·2950H12: Machine sizeApproximately8500kgApproximately8500kg optics cool-processing equipment-----lapping/polishing machine SYXM20B-5L(P)