Qingdao Great Chemical Inc. is an international company active in oil drilling chemicals, food additives, deicing chemicals and other related chemicals. Our production line include Xanthan Gum, Calcium Chloride Powder, Calcium Bromide, PAC, HEC, Lignosulfonate, Sodium Bicarbonate and other oil drilling chemicals. These products are produced in accordance with API and have been proved and used by the top oil drilling companies in the world. We are currently supplying and exporting more ...