following products is our main product ; Diode、 Audion：ROHM .NXP . VISHAY. Tantalum capacitor: KEMET.AVX.EPCOS.NEC.VISHAY. Inductance: TDK. MURATA. TOKO. SUMIDA. COILCRAFT.TAIYO. Resistance: YAGEO. KOA.ROHM.VISHAY.PANASONIC. Capacitor: TDK. MURATA. AVX. KEMET. Trimmer: PANASONIC. MURATA. Aluminium eleetrolysis: NICHICON .NIPPON-CHEMICON. PANASONIC. EPCOS. Iuminotron: ROHM.  kingbright. Crystal oscillator: EPCOS  CITIZEN.  CTS. EPSON.  ABRACON. MURATA .TDK .kyocera.