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This is one type electric motor water well drilling rig, if you can use 380V three phase voltage, so it will be not so noisy when drilling, Normally, it is well used to drill 200m depth, drilling diameter ranges from 150-750mm. also good for some piling project for building and bridge.
If you have further interest, just contact me through whatsApp/WeChat +8615137425291. E-mail akldrill@gmail.com, web page www.akldrillrig.com, we will get back to you soon