Natural diamond cutting tools using advanced foreign technology, the use of welding technology refined from single-sided. For finishing gold, silver, copper, aluminum and alloy materials, mainly used in aerospace, equipment, instruments, watches and clocks, jewelry and other fields, such as: metal parts; car wheel; surface treatment; technology products; carved; copper grant flowers; phone metal buttons; phone. digital. MP3 casing; watchcase. nameplate, signs approved to spend high light. Processing by the mirror effect can be achieved.
