In fact, you can also distinguish, from the front, the grinding plate is slightly oval, the top is relatively flat, the bottom is flat, almost not concave to the inside, and the bottom of the line between the grain is straight and clear, the tip is very small, almost none. Under normal circumstances, the height of the mill is very natural, very coordinated short pile, but the splint chicken heart, one is the grain is not right, due to clip the process of bad control of the height of the walnuts, from the front, the height of the walnuts is very incongruous short,, some even like a pancake, think about the process of natural growth is not possible to grow a particularly short walnut. Another difference is the tip of the plywood chicken heart, no matter how to press, the tip of the plywood chicken heart are particularly large, the tip of the grinding wheel is almost the same as a grain of rice, but the tip of the plywood chicken heart is still the same as the normal chicken heart, the difference between the grain I'm not very good at saying. In a word, look at the natural height and the size of the tip. I have a mill in my hand, there are also plywood chicken heart, the above differences are my own summary, whether right or wrong, I hope to help the owner.