Dalian Aotianyu Chemical Trading Co., Ltd. shall operate: paraffin, toluene, polypropylene, dichloromethane, chloroform, tetrachloroethylene, silicone (trimethylchlorosilane), ethylene glycol, anhydrous sodium sulfite, caustic soda, Domestic and import and export trade of chemical products such as soda ash, dimethylformamide (DMF),Chlorotrimethylsilane, refrigerant R22, R410a, R404, R407C, R134a