Sheepskin
The pores on the leather surface are oblate, small and arranged into fish scales. Generally, several pores form a group. The leather is soft and elastic.
pigskin
The pores on the surface of pigskin are round and thick. They are inclined deep into the leather. The arrangement of pores is generally a group of three pores. There are many small triangles on the surface of pigskin. The elasticity is poor and the skin is thick.
cowhide
The results showed that the pores on the surface of buffalo skin were round, compact and uniform; the pores on the surface of buffalo skin were thicker than those of buffalo skin, but the number of pores was rare, and the texture was not as fine as that of buffalo skin.
Horse skin
The pores on the surface of horse skin are flat and round, clearer than sheepskin. The skin is hard. The arrangement of pores is very regular. Several pores are arranged in a group, and the handle is rough and hard.
