... Shifeng Group---the largest agricultural machine manufacturer in China. Nylon-6 Plant was established in 2005, the total investment of ... is mainly used as framework material for tires. At present, Shifeng Nylon-6 Yarn sizes include 930dtex, 1400dtex, 1870dtex and 2100dtex ... quantity, in order to keep the leader position. At present, Shifeng Nylon-6 products have been exported to 25 countries abroad, ...