Fused Silica, Silica Gel, Silicon Metal manufacturer / supplier in China, offering High Purity Silica Gel Balls Bulk Density 670-720 G/L, Medical Grade Columnar Silica Gel Desiccant Used for Silica Gel Canister 1g, 2g, 3G, DMF Free Swab Antigen Test Kit Desiccant Packet and so on.