According to several criteria to square paper classification, such as usage, shape: 1, according to the purpose, that is what to do with. According to industry application will be classified as follows: chemical fiber industry, film industry, printing industry, printing industry, paper industry, paper industry, leather industry, paper industry, paper industry, food packaging, gift packaging, etc.. 2, according to the shape, the shape is now available on the market more round tube, square tube, flat tube, prismatic tube. Which is the most common round tube. Paper and tube material, environmental protection, moisture, waterproof, China's economy in the development, the use of paper tube is more and more wide, increasing the amount of
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