Research record
Dongying Cenfirm Petroleum Machinery Co., Ltd.
More recent sourcesManufacturing or processing claimsFactory audit not completed
Product & service leads
Exhibit Profile： MWD, float collar, float shoe, stage collar, packer, flotation collar, centralizer, screen pipe Exhibits show：
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 · 2021
- Public source 1 ↗e.cippe.com.cn
- Public source 2 ↗www.fangxushiyou.com