What constitutes the only major:

There are hard leather, soft leather, leather, cloth, rubber, plastic, rubber and rubber foaming materials. Hard leather is cow, pig, shoe treatment, used to make a small sole shoes. In addition, EVA soles are also widely used in leather bottoms. Cloth is the main material of traditional cloth shoe sole. Old cloth for raw material processing into qualified support or fill the end of the billet by hand or machine with a rope bottom or feel satisfied with the thousandth bottom. Plastic is mainly polyvinyl chloride resin, used for plastic shoes and cloth shoes. Rubber, natural rubber and synthetic rubber for shoes and cloth shoes.