Through more than 40-year hard creation and continuous development,Qingdao Haiyang Chemical Co.,Ltd. has become the largestsilica gel manufacturer in Asia. Sincereform and opening policies implemented,especially in recent years, the company tightly seized opportun ities to create a new demain and has made a big economical expansion. At present,our company produces Haiyang brand silica gel series products of about two-dozen categories with nearly 100 specification...