Ever since 1999, Yiwu Zhongcheng Zongfan Pencil Factory has been specialized in the research and manufacture of pen, and has accumulated experience and rich products in 17 years of production. Now it has integrated R & D, production and sales, and has its own brand Zhongfan and SOFUN", created many patent products. "Constantly imitated, never surpassed ", the company has hundreds of product patents, constantly self-transcendence, leading the market trend.