• Professional ful lbore, full opening, Drill Stem Test(DST) tools manufacturer

    Baoji Changyou Petroleum Equipment Co.,Ltd.

    Add:No.128 Gaoxin Road,Baoji Shaanxi, China

    Post code:721000
    Tel:+86-917-3239335
    Fax:+86-917-3801916

    E-mail:sales@cyoiltools-mfg.com

         changyou--_dst@vip.163.com




     


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