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610mm casing DTH (Down-The-Hole) drill bit
I can say that almost no one knows what this is—unless you work in the mining drilling tools or engineering foundation pile industry.
To cut a long story short, this is a **610mm casing DTH (Down-The-Hole) drill bit**. When drilling large-diameter engineering foundation piles in complex geological formations, this type of **610mm casing drilling equipment** may be required to prevent collapse. If you're interested, feel free to contact us at [www.zzgloborx.com](http://www.zzgloborx.com).
Zhuzhou Zhongge Cemented Carbide Co., Ltd.
AddNo. 1099, the Pearl River North Road, Tianyuan District, Zhuzhou, Hunan
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