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          1.   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