China High Quality 75mm Non Core PDC Drag Bit for Water ...
2021-8-6 · 75mm Non Core PDC Drag Bit for Water Well Drilling. This is steel body non core PDC drag bit 75mm, it adopts 1308 PDC cutters and 45# steel to produce under forging process. PDC cutters as the cutting teeth is very hardness, tungsten carbide blanks as the diameter gauge can protect the bit diameter size well.
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