4WE6B60/OCW220-50N9Z4,4WE6B60/OCW220-50N9Z5,4WE6B60/OCW220-50N9Z5L,4WE6B60/OCW2 4WE6B60/OCW220-50N9Z4,4WE6B60/OCW220-50N9Z5,4WE6B6 无锡市昌林自动化科技有限公司