How to identify all kinds of leather

To all sorts of dermis, basically be to observe the pore on leather.
The imitation leather is mainly the pore and the base plate, may observe the recognition from the leather section.
Sheep leather is lined with two to four pores on the semicircular arc, surrounded by a large number of fine fuzz holes.
It is flat and round, with several pores forming a group to arrange, and the hair and eyes are far apart. Due to the uneven leather surface, the leather surface appears rough and soft, which is generally used after shaving.
The pores of the cattle leather are small, round, evenly distributed and close. The pores are straight to the inside. The leather face is full, the light is high, the leather board is soft, fine, strong, and the hand feels firm and elastic.
Buffalo leather dermal surface is uneven, certain surface is coarse make, pore is thicker than ox sparsely, do not use it commonly face leather and do sole.
The pores of horse leather are oval, larger than those of cow leather, and the veins are inclined into the leather. The leather is soft and loose, and the color is not as dark and bright as that of cow leather.
Letter leather leather from the appearance to feel similar to leather, but no pores, the bottom of the non-animal leather, is made of knitted fabrics after processing synthesis.