dónde comprar zapatos como componente de China suela, zapatos de cuero de la PU superior y etc

es canton fair could be your ideal choice , but there are plenty other shoes or footwear fair you can be attended such Jinjiang international shoes fair, most of shoes out soles or components producer shown there, then you can get more information personally.

putell.com putell professional shoes used PU leather supplier, they got a funny name but the great service.

vibram.com you can locate its branch in China ,they have great quality but they got expensive price and fewer styles and most are rubber.

dosole.com middle class out soles manufacturer,plenty styles they provide in most of material, price is moderate as well price.

anynsole nice insole maker for shoes maker,most of their products are EVA materia

Referencia
Jinjiang Shoes Fair