Cemented carbide ball teeth
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Tungsten carbide bullet teeth alloy ball teeth tungsten cobalt alloy cut non-standard profile
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Tungsten steel hard alloy head YG8 tungsten carbide ball tooth cutting teeth for geological and mining drilling
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Hard alloy wear ball tooth manufacturers direct sales do not calibrate
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Tungsten steel alloy Cemented carbide ball teeth for ground mining Cut-off teeth YG11 YG15