Located in Qingdao (a beautiful coastal city) of Shandong province, Qingdao Dayin Chemical Co., Ltd. is an enterprise specializing in the research, development, manufacturing, trade and professional service of printing & dyeing auxiliaries, functional finishing agents of textiles, and washing enzyme preparations of clothing. Now, we are devoted to providing non-toxic, non-contaminated, biological and environment-friendly textile printing & dyeing auxiliaries and washing bio-enzyme preparations of clothing...