zq36

1.Kaiyu series drill,high quality 2.taper:button bit 3.all tapes of drill bits 4.delivery time is 15 days We start to make button bit from 1996, now we can finish 8000 pcs button bit every day.Our button bit are make of the best alloy for drilling bit and the carbide are import from Europe.The quality is the best, fit for all kinds of rock.Button Bit ∅38-∅127 Button Bit Dia38- ...