Cangzhou Ouguan Packing Machinery Co.Ltd set up in 1984, is a company that a profession be engaged in the high speed 357 layer corrugated paperboard production line and flexo printer slotter die-cutter machines etc. br and sincerely cooperates with the majority of users we will meet the needs of users with continuous improvement of product quality and better after-sales service. We are willing to work together with all customers to create brilliant,