automatic block plant special welding and molding craft ... same.5.the system can diagnose the production line automatically.6. every production process can be showed on the ... 15, QT8-15,QT10-15 and QT12-15) economic production line(QT6-15, QT8-15,QT10-15 and QT12- ... 15)well-chosen production line(QT6-15, QT8-15,QT10-15 and QT12-15) automatic production line fully automatic production line QT12-15