Qingdao heng ze products silicone Co., Ltd places on the high and new technology industrial zone in Qingdao. It adjoins Qingdao international airport, jiqing highway and the north of cross-sea bridge of Kiaochow bay. Our company markets our own products, like column chromatography silica gel, color changing silica gel, cat litter and different products of silica gel. We have kept in touch with academic institution closely such as Sinopec research institute and Dalian technikon for a long time since we set up. Our company devote ourselves to upgrade the good and offer customization to our clients