少妇被多人c夜夜爽爽av,欧美人与动人物牲交免费观看久久,影音先锋av电影,精品少妇一区二区三区视频

About us

Tel :

86-417-5281118

86-417-5281837

Fax :

86-417-5281008

86-417-5281098

E-mail :

info@sinomagchem.com

Your location > Home > Our brand > Exchange activity

Domestic & International Communications

 

Our group not only insist on independent innovation but also lay emphasis on research activities and technological exchanges, such as building R&D base Magnesium Fertilizer by joint efforts with Chinese Academy of Agricultural Sciences, building “Engineering Technology Research Center for Magnesite Chemical Industry” by joint efforts with the Institute Qinghai Salt Lake of the Chinese Academy of Sciences and building strategic alliances of magnesia material product with Liaoning University of Science and Technology.

 

We take an active part in various commercial, academic and public benefit exchange activities, and try our best to make a contribution to the development of agriculture.

 

?