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Geological Exploration Drilling Pipe Bq, Nq, Hq, Pq, Drill Rod

2025-04-13 introduction 2340
NMDC
Provide
12month
CNC Milling
Oxidation
Atmospheric Pressure
Alloy
API
Oil Field
Well Drilling
Drilling Tools
Drill Rod
China
Alloy Steel
Tolian
Wooden Case
According to the custom
China
8431431000
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