Sierzutuo technology Co., LTD. is a professional manufactory of GEL insoles in China?which is specialed in study ,produce and sells all kinds of footcare products with different material,such as silicone insoles, gel insoles, liquid gel insoles, EVA foam, PU foam, PE (polyethylene) foam insoles and poly insoles. We have our own self-contained research team to develop new products constantly with Adopting European balance theory and Analyzes foot movement of the mechanical characteristics, which ...