Expanded perlite is manufactured by our company's unique and modern double-curve expanding device and it is low in product density and excellent in grain intensity and its optimum density index is
20kg/m³ lower than that in traditional products, which makes it possess wider range of application. As the raw material for highly-processed products, it is able to highly improve technical
performance of products. Its top-level product quality and advanced technique make it stay in the leading position in this industry.