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Huanghe Road,Zhengzhou,Henan,China China
The rock coal drill rod adopted the special materials on the basis of coal drill rod, which improved the drill
The wearable alloy drill rod is reformed and reconstructed on the basis of coal drill rod, which is the updati
The multi-functional drill rod is a kind of new product, which can drill coal, explore water, explore gas, not
Wet drilling bit and dryer drilling bit for coal mining. *3 wet/ dryer drilling bits for coal mining. *8
Featrue ***** diamond segment and thinner tube wall can easily reduce the resistance and increase the drillin
Contact Person Ms. Young Hu
Address Huanghe Road, Zhengzhou, Henan
We will contact you soon .
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