Abamectin Erythromycin Erythromycin thiocyanate Tetracycline hydrochloride | Company ProfileNingxia Qiyuan Pharmaceutical Co., Ltd is a large manufacturer specialized in the production of API, intermediate. Main products are Erythromycin Thiocyanate, Tetracycline Hydrochloride,Erythromycin Base, Avermectin,Tetracycline. Tetracycline Hydrochloride has gotten COS in Europe, FDA in U.S.A. The largest output of Erythromycin Thiocyanate in the world. Your inquiry to Ningxia Qiyuan Pharmaceutical Co.£¬Ltd |