亚洲欧美伊人久久,在线视频亚洲欧美,国产久RE热视频,亚洲日韩欧美内射姐弟,h动漫无遮挡成本人h视频,小小水蜜桃在线观看视频,午夜国产羞羞羞国产精品,亚洲综合在线一区二区三区,久久精品一本到99热免费,在线美女黄色网页

Into shanjiang

Products

Product classification

Recommended product

EVA sole material

Sneakers

The material used in EVA sports sole is ethylene / vinyl acetate copolymer, which is prepared by the copolymerization of ethylene (E) and vinyl acetate (VA), referred to as EVA. Compared with polyethylene, EVA introduces vinyl acetate monomer into the molecular chain, which reduces the high crystallinity and improves the flexibility, impact resistance, miscibility of fillers and thermal sealing performance. EVA sole has good resilience and tension resistance, high toughness, good shockproof and cushioning performance.

Contact us

Description

Leave a message

If you have any comments or questions, please feel free to contact us