Jewel bearings for micro motor and quartz watches stepping motors are our major products, we are specialized in machining the superhard materials, including artificial corundum, synthetic agate products, magnetic ceramics, SmCo magnet, samarium-cobalt ferroxcube-neodymium-iron-boron etc. Main products: fiber-optic bush (zirconia-tube) notch-shaped agate bearing(s), through-hole agate bearing(s) and varieties of magnetic elements for the fields of thermo technical instruments, electrical instruments, infrared guidance, photosensitive communications, wear resistant and corrosion resistant.