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            2.   Welcome to our company!   
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                       Sulfide series
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              Dongying Webchem Chemical Co.,Ltd. 
              Add: Haisheng road, Hekou, Dongying, Shandong, China 
              Contcater:liu Manager +86-13012900910
              Tel:+86-546-3665336
              Fax:+86-546-3665338
              E-mail:sales@webchem.cn