Zhengzhou Deao Machinery Co.,ltd （Anji Plastic Machinery）specializes in the manufacturing of extrusion screen changers.

Our product line consists of a wild range of options, including manual, automatic, continuous, single-slide, double-slide and single double-piston series, which could provide optimum filter solutions for any extrusion provide optimum filter solutions for any extrusion processes. Equipped with the cutting edge metal processing technologies and nearly twenty year experiences in building screen changers, We are proudly providing quick, reliable and economical screen changer solutions for customers from China, Germany, USA, Japan, Austria and so on. In 2005, Deao Plastic Machinery was certified as an ISO 9001-2000 manufacturer for our excellent products to customers that greatly exceed their expectations. We are looking forward to contributing our product to your future successes.