Heibei Addtie Biological Technology Co.,Ltd is one of the biggest specialized manufacturer and exporter of chemical raw materials in China. specialized in all kinds of hormone chemicals,Pharmaceutical intermediates and research chemicals etc. The company has three production workshops and lines. Factories with a total area of approximately 20,000 square meters and has an independent R & D center with 3,500 square meters. The company has total staff of 112, with 58% of production and R&D techni...