Hong Tu Paper Co., Ltd. was established in Shenzhen in 1996, which is specialized in the R&D, production and sales of gray paper board. In 1998, Shanghai Hong Tu Paper Co., Ltd. was established and our company invented the first paperboard production lines which filled the gap in China. The excellent quality products dominate the market rapidly and give great push to the growth for gray paper board industry. There are three brands "Fu Gui Zhu", "Gray Rabbit" and "Crystal Board" which have been ...