should have the folding

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should have the folding, wear resistance. The soles are generally made by the polymer material nike and jordan heels, according to national standards examination in a dedicated folding machine for folding test performance testing air jordan 7 heels, the soles are subject to certain frequency, a certain angle, after a certain number of inflection, according to different varieties, split sole length greater than 40,15,12 mm. Soles wear testing according to national standards, on a special abrasion testing apparatus, so that was seized sole with a standard wheel contact, and are subject to certain pressure, wheel to a certain speed of rotation, worn by a certain time, according to different species, the worn 16,12 nike dunk high heels,10 mm length of not more than qualified. The bottom of the shoes in the outer and the outer end of a certain adhesive strength between the requirements, test or in the universal testing machine for tensile testing machine, adhesive strength of not less than 20N/cm compliance. IV, followed by the shoes will be with a fixed grip, yilai：nike high heels


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