Sapphire Polishing Machines - Our company primarily sells: Sapphire polishing machines, which are mainly used for polishing and grinding various materials such as quartz crystals, silicon, germanium wafers, sapphire, ceramic slices, optical glass, mobile phone glass, and watch glass, etc. The models available include 16S, 16B, 13S, 13B, 9S, 9B, 6S, 6B, 4S, and 4B, featuring high-precision single and double-sided polishing machines.