continue to improve, to ensure product quality in line with market and customer standard requirements. Our company has a quality assurance system have been established for Acetic Anhydride And 1-Butanol, H Nmr Acetic Anhydride , O-Tolyl Acetic Acid , 5 Acetic Acid Vinegar ,B&J Dichloromethane . As a key enterprise of this industry, our corporation makes attempts to become a leading supplier, depending on the faith of expert excellent & throughout the world assistance. The product will supply to all over the world, such as Europe, America, Australia,Guatemala , Sao Paulo ,Mauritania , Mexico .We have been making our products for more than 20 years . Mainly do wholesale , so we have the most competitive price , but highest quality. For the past years , we got very good feedbacks , not only because we provide good products , but also because of our good after-sale service . We are here waiting for you for your inquiry.