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Ball seat and sliding sleeve type ball sealer staged fracturing device

Time：2017-05-12 Publisher：

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Address：Room 705-710, 7/F, Building A, Tiley Central Plaza,No. 3 Haide Road,Nanshan District, Shenzhen, Guangdong

Tel：0755-86331788

Fax：0755-86331733

Email：sales@petro-king.cn

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