1. Pig leather has large pores, one pore and three hairs, arranged in triangular directions, and the hair eyes are far apart. Because the surface of the cortex is uneven, the leather surface appears rough and has poor softness. It is usually used after the surface is repaired.
2. The pores of cowhide leather are small and round, distributed evenly and tightly, and the pores extend into the inside, making the feel solid and elastic.
3. Sheepskin is divided into goatskin and sheepskin. The surface pattern of goat leather is semicircular, with 2-4 thick pores on the upper row and a large number of pores around it; the sheep leather plate is thin, soft in the touch, small pores, and flat and round. It consists of several pores in a group, and is arranged in a long row, which is very uniform, but not strong.
4. The pores of horse leather are oval, but not obvious. The pores are slightly larger than cowhide leather, and they are in a mountain shape in an oblique shape, arranged in a regular manner. The leather surface is soft and the color is dim, which is not as bright as cowhide leather.
5. The appearance and feel of imitation leather are similar to leather, but when you look closely, the base plate has no pores. It is not animal skin. It is made of knitted fabrics and is not strong in real leather.