How do you know if it's a really good copy of paper?Actually very simple, the first check its appearance whether smooth, exquisite, uniform transmittance (that is, uniform);Second, the physical strength of the paper is checked, indicating that the tear degree is high, indicating that the more transparent the paper is, the higher its quality is.Generally good copy paper, take 17g/m2 copy paper as an example, usually can cover up to 6-8 layers, and extremely good copy paper up to 12 layers.Therefore, it is called copying paper, but actually thin paper.