Zhengzhou TongYang Import & Export Co., LTD. is located in zhengzhou, Henan, China.The company mainly manages in raw medical materaial, Food Additives and other chemicals.We are engaged in researching and extending APIs and chemicals. The company throughout Treat "Professional, dedicated" as the enterprise culture."Quality is the first, Reputation is the critical "in business.And all staffs scrupulously follow the pledge that: wholeheartedly provide the high quality products and superior service for customers all over the world. We all staff hope we can make great efforts for you and your suggestion will be highly welcomed.