Shanghai Dehong New Materials Co., Ltd is one of the large professional producers of the material PBT used for optic fiber secondary coating in China. The Series DH products could meet the characteristics and processing requirements of all kind structures of optic fiber cables. This company was established in the year of 2001. With the development and accumulation for more than ten years, this company now possesses ten domestic advanced automatic production lines with annual capacity totally up to 20000 tons.