Min. Order Reference FOB Price
1 Piece US$99.00-999.00 / Piece
Product Description
Product Description 5 7/8 -6 1/2 EBS1316/S333 1. Suitable for drilling expandable mudstone as well as for drilling deepening wells and secondary completion to enlarge annular space for casing and improve well cementing quality. 2. Bit body is made of superior alloy steel which has excellent ...