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8 1/2'(215.9mm)S1655 Steel Body PDC Bit for Oil and Gas well drilling. ... API 8 1/2 inch 215.9mm 5 Blades PDC Drill Bits Steel Body Diamond PDC Bit for Oil Drilling. ... Oil Gas Drilling Equipment PDC Drill Bit Oem Stainless Steel drilling Tool . US 8800-8900 Piece ...
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