回收数字源表：
Keithley 2400，Keithley 2401，Keithley 2410，
Keithley 2420，Keithley 2425 Keithley 2430，
Keithley 2440，Keithley 2440-C，Keithley 2601A，
Keithley 2602A，Keithley 2611A，Keithley 2612A，
Keithley 2635A，Keithley 2636A，Keithley 2651A
Keithley 2400-C，keithley 2400-LV，Keithley 2410-C，
Keithley 2420-C，Keithley 2425-C，Keithley 2430-C，
Keithley 2601B，Keithley 2602，Keithley 2602B，
Keithley 2604B，Keithley 2611B，Keithley 2612，
Keithley 2612A，Keithley 2612B，Keithley 2614B，
Keithley 2634B，Keithley 2635，Keithley 2635A，
Keithley 2635B，Keithley 2636A，Keithley 2636B，
Keithley 2600，Keithley 2600A，Keithley 2600B，
业务范围：
仪器销售、仪器回收、仪器维修、仪器租赁、计量、校准等
经营品牌：
Agilent/安捷伦、HP/惠普、Keysight/是德科技、Tektronix/泰克、Keithley/吉时利、
FLUKE/福禄克、Chroma/致茂、
Topcon/拓普康、Konica Minolta/柯尼卡美能达、Kikusui/菊水、Prodigit/博计、
Hitachi/日立、Hioki/日置、
R&S罗德与施瓦茨、Lecroy/力科、Advantest/爱德万、Anritsu/安立、Aeroflex
/艾法斯、Marconi/马可尼
Iwatsu/岩崎、LitePoint/莱特波特、Yokogawa/横河、Shibasoku/芝测、Spirent/
思博伦、MIK、
Gwinstek/固纬等