"Aolisen chemical company limited, an excellent chemical development and manufacturing enterprise, it located in beautiful city of Hangzhou, Zhejiang Province. It is a professional chemical company, integrating ROS development, small scale-up production and commercialized production, domestic and foreign sales. It's products range includes various pharmaceutical intermediates, fine chemicals, API, food / feed additives, pesticide intermediates, dye intermediates, etc. The company has a good quality assurance system, strict enterprise quality control standards. The belief of quality first runs through the whole production process. After several years of efforts, the company has established stable business relations with dozens of domestic and foreign pharmaceutical companies, multinational chemical enterprises and exporters.