4.How to identify the true and false of the dermis?
Mainly by the eyes. All dermis have an irregular elliptical shape, and the synthetic leather is a neatly rectangular rolled roll, and the dermis on the reverse side of the dermis (the synthetic skin is basically impossible to make the same burrs as the dermis);
5. Can you use fire to identify the true and false leather?
You still give up this plan;
6, how to identify the first layer of skin and two layers of skin?
Pull the leather hard, the top layer of skin can see the tiny pores, and the surface of the skin will be deformed, and the second layer of skin will not have obvious deformation without pores; the second layer of skin is generally hard and feels very
7. Why is the second layer leather not suitable for leather seats?
The surface of the second layer is a thick film, hard and airtight, but the most important thing is that the second layer is not durable and easy to break.
8. Is the synthetic leather a leather?
No.
