错误回传：Object reference not set to an instance of an object.错误回传：Object reference not set to an instance of an object.错误回传：Object reference not set to an instance of an object.
GIKOKA/南京华镒-工控器材&配电器材-各式端子台,继电器座,保险丝座,电表,计数器,累时计,按钮/微动/限动/脚踏/吊车/钮子/十字/切换/押扣开关,指示/色层/警示灯