Top Hammer Thread Button Bits For Underground Mining Drill
Can customize to design bit diameter,air hole quantity as well as bit head shape.Alloy button shape can be changed according to requirement. |
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1.Packing:Carton or wooden case
2.Shipping: By sea / By air / By car / By train
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R3Wontech down the hole retractable drill bit underground mining drill bit2 43mm top drill sinodrills bit 45mm carbide button bits 32 mm