Eco-Friendly Duplex Board White Top Paper Production Machine. High Daily Capacity: Produces 300 tons of paper per day with a design speed of 450m/min. Wide Paper Width: Features a 4800mm net paper width and 6500mm bearing distance. Versatile Material Use: Processes waste paper and old carton boxes into kraft, test liner, and duplex board. Flexible Thickness Range: Handles paper weight from 80-400 g/m2 for various specifications. Advanced Drive System: Uses AC frequency conversion and section drive for precise speed control. Comprehensive Warranty: Provides 1-year warranty for machines and 3-year warranty for core components. Global Installation Support: Engineers provided for installation, debugging, and worker training overseas. ISO9001 Certified: Manufacturer with ISO9001:2015 certification and 100% finished product inspection.