Beijing Hi-Nitrogen Chem. Co., Ltd. is a science and technology enterprise that has the ability to research, develop, manufacture, import and export. We own our research and development (R&D) center , an outstanding R&D team composed of doctors and masters, and a stable production base. We are dependable in professional export/import commercial activities and we can be entrusted with developing and producing products. The products include: fine chemicals, intermediates, pharmaceutical intermedia...