2020-09

2018-05-20

2012-10-01

2011-11-11

At 11:11 on November 11, 2011, Anqing Zhongda Carbon Co., Ltd. officially ignited the calciner successfully

2001-07-18

1997-06-08

Shanghai Yuai Metallurgical Materials co., LTD. was established.

2019-06-01

Shanghai youai metallurgical materials co., LTD. Was established