Tender for Cleaning And Extraction Of Old Damage Pipe Of Existing Vertical Borehole No 16 From Surface To Dobrana Rv Seam 1west Dip 11l And Also Lowering Of New Pipe Including Casing Pipe In Place Of Old Damage Pipe For Dewatering No 6 Pit Wrokings Of Dobrana R in Burdwan - West Bengal

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