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 Shanghai Longzhong Information Technology Co., Ltd
    Domestic Sales Department: +86-21-68534319
 
 Zibo Branch
    International Sales Department: +86-533-7156293
    Customer Service Center: +86-533-7156293
    Mail: liujian@oilchem.net
    MSN: liujian_001@hotmail.com
Shanghai Longzhong Information Technology Co., Ltd
Domestic Sales Department: +86-21-68534319
Zibo Branch International Sales Department: +86-533-7156293
Customer Service Center: +86-533-7156293