Hangzhou Qingyun New Materials Co., Ltd. was established in 1995. As a subsidiary of Hangzhou Qingyun Holding Group, Hangzhou Qingyun New Materials Co., Ltd. is a national high-tech enterprise specializing in the production, sales and research and development of spandex special fibers and its upstream industrial chain products (PTG and THF). Focusing on the technology research and development of spandex products, our company has established a province-lev...