西门子工控机6AG4104、6AG4011、6ES7643、6ES7647、6AV780、6AV787、6AV781、6AV77、6AG4040、6AV784、6AG710等
西门子交换机6GK5414、6GK5408、6GK5491、6GK5204、6GK5208、6GK5104、6GK5108、6GK5202等

现货工控机型号：
RACK PC547B   6AG4104-0CA01-0XX5
RACK PC847B   6ES7643-8GG00-0XX5
BOX 627B     6ES7647-6BB15-0BA0
BOX 627B     6ES7647-6BD05-0AX0
BOX 627B     6ES7647-6BB15-0BA0
PANEL PC677B 6AV7872-0HA10-1AA0
PANEL PC677B 6AV7870-0HA10-1AA0
PANEL PC677B 6AV7870-0HA10-0AA0
PANEL PC677B 6AV7800-0BA21-1AA0等等

现货交换机型号：
6GK50050BA001AA3
6GK51042BB002AA3
6GK51080BA002AA3
6GK51122BB002AA3
6GK52022BB002BA3
6GK52040BA002BA3
6GK52042BB002AA3
6GK52042BB102AA3
6GK52080BA002AA3
6GK52080BA102AA3
6GK54082FD002AA2
6GK54143FC002AA2等等