Our products achieved sixteen world-invention-patent, the increasing number of sells on abroad and the high evaluation from the customers proves that KeyCheng is now a world class brand. Shanghai Key Cheng printing machinery co.,LTD was established in 1990, located in the FengXian District, having 15,000 square meters of workshop area, Shanghai Key Cheng is keep developing not only on the production capacity also on the after sales service to the customers.