Min. Order Reference FOB Price
1 Piece US$400.00-3,800.00 / Piece
Product Description
Product Description IADC Rock formation WOB (KN/mm) PRM(r/min) 417/427/437 Low compressive strength, high drill-ability and extremely soft formation, like shale, clay, sandstone, conglomerate etc 0.35~0.90 140~70 447 Low compressive strength, high drill-ability and soft formation, like ...