Due to the differences in different parts of the animal body, there are corresponding differences in the hardness, thickness and grain texture of various parts of the leather. Generally speaking, the leather fibers perpendicular to the spine have excellent extensibility. The specific characteristics of each part are as follows: the buttock back is relatively easy to be attacked by foreign enemies, so the fibers are thick, solid and tight, and the cortex is strong and flexible, so it is a whole body It's the strongest and the best part of leather.
Abdominal risk is low, in order to cooperate with gastrointestinal expansion and contraction and soft and elastic, due to the largest elongation and the most flexible, loose, the leather is the worst, but the cow abdomen made of the skin texture is the most obvious beautiful, is a typical litchi pattern. The chest is flexible because of breathing.
The shoulder is soft, and the neck has strong tension and growth marks. The thickness of the front and rear legs is uneven, with obvious wrinkles.
