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14 3/4" IADC437 TCI rock bits cutter for hole opener made in China
1.The durability of premium tungsten carbide inserts are improved with new formulas and new techniques for insert bit;
2.Sliding bearing forms, palm-axis surfacing tooth carbide layer, inner cone hole silver;
3.Bearing O-ring wear-resistant, high-...
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2017-10-07 |
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9 1/2" IADC537 TC open bearing various size insert drill bits
1.The durability of premium tungsten carbide inserts are improved with new formulas and new techniques for insert bit;
2.Sliding bearing forms, palm-axis surfacing tooth carbide layer, inner cone hole silver;
3.Bearing O-ring wear-resistant, high-...
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2017-08-01 |
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