Purchase Qty. Reference FOB Price
1-99 piece US$20.00
100-9,999 piece US$18.00
10,000+ piece US$5.00
Product Description
YK 30mm coal mine two wings strengthened pdc high quality pdc anchoring rod drill bit pdc with dome anchor drill bit Product Description 1.PDC drill bit is super hard material combined with diamond and hard alloy under high temperature. It has the advantages of hard and durable from diamond, and ...