Knowworld International Agriculture Co.,Ltd.

Yantai hope biotechnology co., LTD

Shouguang hope biotechnology co., LTD

Shanxi's biological technology co., LTD

Add:Yantai High-tech Development Zone,Kailai Road No.39,

Chinese and Russian Science & Technology Park

Tel:0535-7399188  7399199  18660691999

National Service Hotline:400-9911-595  

QQ:652744107

E-mail:nwgjduyi@163.com