As observed in the determine underneath, continuous auger is accustomed to drill the borehole, raise up drilled soil, and pour concrete although the auger is moved up. Due to this fact, the borehole doesn't require casing or hydrostatic strain to avoid damage to the borehole wall. আমাদের কোম্পানিতে দক্ষ সার্ভেয়াররা https://euripidess369chm8.ouyawiki.com/user