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Bq Nq Hq Pq Drilling Pipes Rods Casings
2025-04-13
IP locality Unknown introduction 4500
BQ NQ HQ PQ
Dcdma
a B N H P S
Deep Hole Hard Rock Core Drilling
Carbon Steel
JINSHI
Bundle
BQ NQ HQ PQ NRQ HRQ PHD NTW HTW
China
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