As Chinas leading corrugated paperboard production line and carton making machinery manufacturer and exporter, DONGJIAN Company takes care of the entire transaction, from product developing and manufacturing to the exporting of finished products. We provide reliable, quality machines at reasonable prices, such as the 3/5/7ply corrugated paperboard production line, and flute laminating machine, and flexo printing slotting equipment, Carton factory conveyor/logistics system, auto strapper/bundling machine ,die cutting creasing machine. Automatic partition assembling machine.