Not bad. Yiyuan Ruifeng Polymer Materials Co., Ltd. is a high-tech enterprise with the registered trademark "Lushan". The company currently has more than 200 employees, including 30 senior professional and technical personnel, accounting for 15% of the total number of employees. Yiyuan Ruifeng Polymer Materials Co., Ltd. was established in 1994. The company is mainly engaged in the research and development, manufacturing and sales of PVC additives.