Our company was formerly known as Changsha Double Star Gear Industrial Co., Ltd., founded in 1994 by Professor Zeng Tao, the leading expert on spiral bevel gears in China,is a wholly-owned and directly affiliated enterprise of Central South University. In 2016, it was changed to Changsha Senjie Gear Co., Ltd., which is a professional design, development, manufacturing and sales of high-quality small module spiral bevel gear, hypoid gear with high reduction ratio and cylindrical gear production and development base. In 2023, Hunan Dinghan New Material Technology Co., Ltd. was established as a specialized international export business department.