Hesun is headquatered in Yuhang district, Hangzhou city of China, it is leading PET film manufacturer specialized in supplying transparent, colored and functional films widely used in the areas of electronic products, electrical, automotive, construction, packaging and decoration industries. Our company has obtained over more 30 patents covering the research and development of raw material formulas, the renovation of key equipment, and the design and optimization of process parameters. We own a professional polyester film factory.