Min. Order Reference FOB Price
1 Piece US$1.00-8,888.00 / Piece
Product Description
Product Description Hebei Ruishi Bits Manufacturing Co., Ltd Item IADC Code WOB (KN/mm) RPN(r/min) Application 111/114/115 0.3-0.75 200-80 Very Soft formations with low compressive strength and high drill ability 116/117 0.35-0.8 150-80 (Like caly, mudstone, chalk) ...