Cangzhou Guyuan Steel Pipe Co., LTD
            Address:Hebei province
            Telephone:+86-0317-5305880
            Fax:+86-0317-3200713
            Website: http://www.ggccq.icu
            E-mail:gy-pipe@hotmail.com
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            All Kinds of Standards of Seamless Steel Pipe Chemical Composition and Mechanical Properties

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            Address:Hebei province E-mail:gy-pipe@hotmail.com
            一下子就弄进去了岳