Sanmeul 4 Blades PDC Concave Drill Bit for Water Well ...
Sanmeul 4 Blades PDC Concave Drill Bit for Water Well, US 50 - 500 Piece, 6 months, Manufacturing Plant, Machinery Repair Shops, Energy & Mining, None.Source from Sanmeul Drilling Tools Co., Ltd. (Bozhou) on Alibaba.com.
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