Midwest Group instruments and chemicals  is started 1988, with over 10,000 suppliers, 300,000 customers, and 1,000,000 products. 

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Tel:86,10,62976690   Mobil:86,13301328326   Fax:86,10,62981256   Add: Midwest, No.1, 3rd. Street, Shangdi, , Haidian, Beijing,China,100085 
 Email: ziyu@midwest-g.com;    ziyu@62965544.com   zxqc92003@yahoo.com.cn;   jz123@midwest.com.cn