Your One-Stop Shop for All Drilling Needs
Tel.: +86 182 7512 4520
Email: drilling.wang@yahoo.com
On Dec. 17, Hummels visited the biggest roller bit factory here. The factory is a part of the Global Top 500 Enterprises CNPC and Guiyang TOP is their authorized distributor.
On Dec. 28, Hummels visited the biggest factory of drilling steel in China.
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