Dongguan Dongkeng Hongchang Silica Gel Products Factory is a developing company which is committed to the design, development, manufacture and sale of inorganic silicon chemical products. After several years' development, we have had more than 150 staff members. Technical development engineers and managers, with strong development and design capabilities, take up about 5% of the staff. Our products cover electronics, toys, stationery, fitness massagers, sports goods, medical instruments, ...