Anshan yongjia fine-chemical factory was established in 2003.Occupies a great of area more than 7000 m 2 , It is in the north of Anshan city ,is 20Km far to the scenery Qianshan .They are 40 stuff, more than 30% of which are specialized technicians of all kinds of fields. Among them, there are two senior engineers, one Doctor and one Master. The factory is specialized in the research, development and production of fine –chemicals. Main products: N,N'-bis(hy...