Coal Mine Button Bit factory Outlets for Well Hand Drilling Tools H22 H25 Carbide Hex Hollow Steel – Kat

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• A type of steel specially used in drill rod manufacture, high intension and toughness. Hexagon and round
• (1)Material: Sanbar 20 or C253;Z708;Sanbar 64;Sanbar 23.
• (2)Size: Hex.22mm, 25mm, 28mm,35mm, R39,R46,R52
• (3)Length: any length according to your require.
• (4)Package: Wrapped with steel belt and then into bundles.
• (5)Productivity: 20000MT/ month