Zhejiang Dashengyuan import and export Co.Ltd is a collection research and development and production as one of the enterprise contract keeping promises units, Zhejiang famous enterprises, and through ISO9001 international quality systemcertification and ISO14001 interenational environment system certification. Company is located in the beautiful gongshu district of hangzhou, zhejiang province, convenient transportation company isspecialized in pure c styrene acrylic silicon a crylic-acid anhydrous copper sulfate, zinc sulfate monohydrate chemicaladditives over ten series of more than 50 kinds of products used in the research, development and manufacture is committed to providing coating products, rubber, textile, leather, cleaning, glass, food and many other leading consumer industries all of our products, to stabilize the quality of the control system of our own first class equipment and modernized warehouse inventory, products are widely used in many industries, the products sell well all over the world, well received by the user's trust and for many years, the company because of its strong technical force of sophisticated processing equipment and complete testing means, stable and reliable product quality, honesty and standardized commercial credit enjoys a good reputation in the customers, welcome friends at home and abroad to visit.