TEL : 028-85121781
Set Homepage | Add Favorite     中文 | English

Company Profile

More+
The term “Jiuzhang” is taken from the Nine Chapters on the Mathematical Art as the first work on natural science in China which begins to be compiled in the Warring States period, and is continuously researched, perfected and finalized during the Qin, Han and Three Kingdoms periods.

Oriented Projects

More+