Tender for Laying Of Hdpe Pipe And Lay Flat Hose (490 Mtr Length) From Main Dewatering Pie Line Of Patch A Towards Coal Stock 90 For Prevention Of Spontaneous Heating Of Coal And (2) Laying Of Ms Pipe 150 Mm Dia Length 790 Mtr From Departmental Patch To Ob D in Chatra - Jharkhand

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