Purchase Qty. Reference FOB Price
1-49 Pieces US$584.00
50-99 Pieces US$570.00
100+ Pieces US$560.00
Product Description
152 Atlas Copco Thread Oil Mining Hard Drilling Rock Bits IADC Pressure(KN/mm) Drill speed(r/min) Applicable strata 417/427 0.3-0.9 150-70 Very soft strata have low compressive strength and high drillability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc. 437/447 ...