Dongying ZhizaoMade-in-Dongying directory

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Research record

东营庆华石油科技有限公司

Historical sourcesManufacturing or processing claimsFactory audit not completed

Product & service leads

MWD

Products reflect the linked public sources. Manufacturing claims, exhibition entries and project leads are not factory audits or current certifications.

Address or location evidence

东营关联,具体工厂地址待核

Locations are source-based address leads, not confirmed manufacturing sites.

Source basis

Research date · 2026-11-02

Latest observed exhibition edition · 2013