E120-R2NB,E120-R2NC,E120-R2PA,E120-R2PB,E120-R2PC,E120-R2KA,E120-R2KB,E120-R2EA E120-R2NB,E120-R2NC,E120-R2PA,E120-R2PB,E120-R2PC, 无锡市昌林自动化科技有限公司