1 Book paper:  

generally, we often use the inner pages of the novel, which is thin, usually 60-120g, which can absorb ink quickly, but because of the rough paper, the printing is a little rough, but it can also be said as an idea.

2 coated paper:

also called paper, both sides is more light, often used in pictorial poster, etc.., printing delicate, common 105-300-g, but because of all the books in use, with some bad, now many designers do not like to use this paper.

3 Mute powdered paper:

 relative to the coated paper, the two sides do not glance, can be used in the pictorial poster, common 105-300 - g, from think to still relatively rich, but now also use more, common, pictorial basic are all in the dumb powder with coated paper and paper.

4 Gray paperboard:

 often used in packaging,because the back is gray, and commonly known as ash paperboard, common for 250-400 - g, also often used for mounting hole paper, make it known as cardboard east, so the more protective packaging to the product.

5 White cardboard:

 relative to the ash paperboard, the back is white, but the side of the paper core is a common 250-400 - g gray < > single powder card side white bottom heart is white, white paper is better than the white card, hard enough, common 250-400 – g

6 Special paper:

generally refers to special paper, such as kraft paper steel paper, paper good, price is expensive, because the category is too many, is not introduced.