Tianjin Wanhua is one of the earliest enterprises producing bidirectional stretch polyester film in China, with an annual output of 25,000 tons/year. Matte, white film, coating three core series products enjoy a high reputation in the industry, especially the matte series and low melting point iron coating series products are in a leading position in China with unique technology and excellent quality. Bidirectional stretch polyester white film for iron coating, BOPET in-line coating polyester film for high temperature cooking, single-side matte polyester film for TPU process and other products have international advanced technology level. It has 17 authorized patents, including 15 invention patents and 2 utility model patents. Tianjin Polyester New Materials Engineering Center was established jointly with Tianjin Polytechnic University, Tianjin Boyuan High-tech Materials Co., LTD., and Tianjin Huaxinying Polyester Materials Technology Co., LTD.