Drill pipe welded with wear-resistant structure and welding method

CA3283299A1Pending Publication Date: 2026-09-21SHANGHAI HILONG DRILL PIPE CO LTD +1
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Patent Information

Application Number
CA3283299
Authority / Receiving Office
CA · CA
Patent Type
Applications
Current Assignee / Owner
Priority Date
2025-03-14
Filing Date
2025-03-28
Publication Date
2026-09-21
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