The key to identification is to look at it, ask more questions, and practice more. Take walnuts, go to those famous reputable famous shops to go shopping, try to touch the real walnuts, good walnuts, and then buy a pair of walnuts (not necessarily good, but true), waiting for you to pick up In a few months and a few years, I will encounter fake walnuts. As soon as I look at it, I will know that it is fake because I feel different from real walnut. If you haven't touched the real walnut, or the time of touching the real walnut is too short, even if you tell us a lot of identification methods, you can't identify it, because both true and false are compared. For a simple example, I am now Tell you, really old walnuts are shiny and lustrous, while fake old walnuts are glaring. But if you don't have the chance to see the real walnuts with your own eyes, you can't compare the true and false walnuts together, you don't know what kind of light is warm, what kind of light is dazzling. Having said that, the meaning is that you want to understand that the identification of wenwan can't die according to the book knowledge, but to see more, touch more, compare more. Of course, I still want to give you some "book" knowledge for your reference: 1. Texture: If the real walnut is new, it has a strong sense of wood. If you look closely at the skin of the walnut, there will be a texture similar to wood (not the texture of the walnut itself), and the walnut has no wooden texture. 2, feel: real walnuts, even if it is new, it feels smoother when picked up (except for scorpions and lanterns, but these two varieties are relatively cheap, and there are few fakes), pink walnuts feel particularly lazy. 3, weight: If it is a new walnut, it is relatively heavy, the old walnut should be relatively light, because the water evaporated, if you feel like two large stones in your hand, it is basically resin. 4, color: old walnuts are not all red, some are not red, but the real old walnut color must be deep, natural, let you feel that it is from the inside out is that color, good Like a piece of carved jade, you can see the thoroughness of the inside; fake walnuts and dyed walnuts feel the color is not transparent, not transparent. 5, luster: the old walnut's patina is thick, the luster is elegant and dark light, similar to the feeling of mahogany furniture. The luster of fake walnuts is glaring, and it feels like light like plastic, resin and glass. 6. Common sense: One of the most important common sense is that there are no two leaves in the world. There are also no two perfect walnuts. If you find that their texture, size is exactly the same (or very similar), and the shape is particularly perfect, then be careful, the probability of being cheap by you as a scholar is Very small. To put it bluntly, it is to put a correct attitude, not to be perfect, not to expect to leak. 35KV Peelable Semi-conductive Shielding Material 35Kv External Shielding Compounds,Pyjbj-35 Peelable Semicon Shielding Compounds,Peelable Semi-Conductive Shielding Material,35Kv Peelable Semi-Conductive Shielding Material Jiangsu Super Prosperous New Material Co., Ltd , https://www.jschaowang.com