... types of optoelectronic products including Red Laser Level Meter (R series), Green Laser Level Meter (G series), Measuring tape ... Green Laser Module (GL series), Green Laser Pointer (G series), Red Laser Pointer (R series), Pneumatic Tooling(O) etc., ... sighting pieces, laser medical treatment instruments, analyzers, laser level bars, dynamoelectric tools, stage lighting and landscape engineering. ...