Min. Order Reference FOB Price
1 Piece US$7,163.00-7,879.30 / Piece
Product Description
N120/N125/SD2 MRING365 Overburden Symmetric Casing Drilling System Bits for Underground Drill Product Description Rock drilling tools factory KINGDRILLING professionally produce Ring wing bit concentric drilling systems by down the hole hammer which are designed to drill and case a hole ...