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core bit for geology drilling

75mm,94mm,113mm,133mm,153mm,173mm PDC Sintered Diamond Core Drill Bits Sinter...
Pdc Drill Bit Reinforced Composite Sheet PDC Cutter Drag Drill Bit
PDC Sintered Core Bit for Geology Drilling, China Sintered Coring Bit

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Mining Drill Bit
Geological Drill Bit
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No 66, Changming Road, Xi'an, Shaanxi Province, China
+86-029-82612068
+8615291688126
zuanlongbits@gmail.com
http://m.zuanlongbits.com/

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