ABS: It is a polymer of acrylonitrile, butadiene and styrene. The advantage is that it is relatively hard, is not easy to be deformed by pressure, and has high strength and is not easily damaged, and can effectively protect the contents. The disadvantages are high price, heavy weight, inconvenient carrying, no small, basically large.
PC: Abbreviation for polycarbonate, also known as PC engineering plastics. The advantage is that the strength can meet various needs from mobile phone to bulletproof glass. The disadvantage is that it is less hard than metal and easy to scratch, but its strength and toughness are very good, whether it is heavy pressure or general beating, as long as you are not trying to use The stone licks it, it is long enough. Dimensional stability and chemical resistance, high strength, heat resistance and cold resistance; also self-extinguishing, flame retardant, non-toxic, colorable.
Cowhide: refers to cowhide leather. Because cowhide can reach a certain thickness and fastness, it is very suitable for leather handbags and belts. It is characterized by small pores, even distribution, full leather surface, firmer skin than other skins, firm and rich and elastic. The cowhide layer is divided into two layers of skin.
The first layer of skin: the skin is cut into two layers, the upper layer is the layer of hair called the first layer of skin, the best quality, there are eye on the leather surface.
Two-layer skin: It is the second layer of skin under the head layer which is looser in fibrous structure. It has no grain pores and is directly used or sprayed with chemical materials. Therefore, the second layer of skin is leather, but the coating is thicker and the comfort is slightly worse, but it is much stronger than the artificial leather PU.