Niobium cup
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API 5D dirll pipe | Seller: Tianjin city drliprl oil country tubular goods co., ltd | Drill pipe production specifications: 2-3/8, 3-1/2, 4, 4-1/2, 5, 5-1/2, 6-5/8". Steel grade: E75,... | |
API 5D dirll pipe | Seller: Tianjin city drliprl oil country tubular goods co., ltd | Drill pipe production specifications: 2-3/8, 3-1/2, 4, 4-1/2, 5, 5-1/2, 6-5/8". Steel grade: E75,... |