... , Tantalum capacitors, Beads, Optical couplers, Relay, Fuse,Diodes, Discharge, Quartz crystal Devices, Speaker, Buzzer, Optoelectronics/Fiber, Laser, Transistor,Trimmer potentiometers, FET ... , Fixed resistors, Swith, Crystal, Potentiometers and so on,which are widely used in high-tech, civil, automobiles, instrument, communication, manufacture, and military ...