Zhejiang Shuangtu New Material Co., Ltd. was established in September 2010. It plans to invest 3.5 billion yuan to build a production line of 1 million tons of differentiated polyester direct spinning. The first phase of the project was formally put into production in September 2012. The current product quality is excellent, which provides a strong impetus for the subsequent development of the company. The subsequent direct spinning polyester filament device will use 8 Japanese TMT and 16 German Barmag spinning and winding equipment, using a polyester melt direct spinning process and a "twin" full-automatic high-speed winding machine. After putting into production, the annual output value can reach 13.5 billion yuan.