Usually use a thin layer of wax or walnut oil or lacquer. To smell the furniture, it is necessary to use glue, we also have identification. The traditional skinning process uses pig gutta, why do you make pig gutta? Because the skin will be foamed and wrinkled, with the pig glue,you can drive the air out, take a soldering iron and iron it is very flat, and the general chemical glue can not. Identify the pig's rubber, you can rub it with your hands, heat the surface, take a nose and smell it. If you paint, the method of smelling is not good,
but you can smell the back, often the front of the core board is painted and the back is not. Listening to the sound distinguishes the mahogany skin, does not use too good wood, often uses lower density pears, rosewood (white rosewood, squid), etc., can be distinguished by the sound when tapping.
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