Re004, Pr52, Pr54, Re542, Re543, Re545, Re547
                        Customized
                        DIN, API
                        Taper-length
                        Low Air Pressure DTH Bit
                        High Carbon Steel
                        Well Drilling, Coal, Ore, Quarry, Construction
                        Mineral Exploration
                        Re004, Pr52, Pr54, Re542,
                        Flat Face Bit, Convex Face Bit, Concave Face Bit
                        Fast ,and Cost Efficient
                        115-200mm
                        QIDELI, LEILI
                        Wooden, or Others
                        iso9001
                        China
                        8207199000
                        

