出售美国keithley/吉时利2450数字源表2450 keithley/吉时利2450 ¥68800.00 出售美国keithley/吉时利2440数字源表2440 keithley/吉时利2440 ¥65690.00 出售美国keithley/吉时利2430数字源表2430 keithley/吉时利2430 ¥68990.00 出售美国keithley/吉时利2420数字源表2420 keithley/吉时利2420 ¥63500.00 出售美国keithley/吉时利 2410数字源表2410 keithley/吉时利 2410 ¥68500.00 出售美国keithley/吉时利2401数字源表2401 keithley/吉时利2401 ¥65480.00