Look at the skin. It can be observed by pressing the leather and examining the cross section. The dermis has irregular pores, and the thickness of the skin is also subtle; the pores of the leather are regular and uniform in thickness. https://www.leatherapronuk.com/
Two. Smell the smell. Due to the use of animal material, leather is made with its own smell and the smell is natural; the artificial leather is made of resin raw materials and various kinds of plastic, and there will be an unpleasant smell of irritation.
How to identify the dermis
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