Details: invitation to pre-tender meet forpipeline crossing using hdd method numaligarh refineryexpansion project brief scope of work:pipeline laying across following listed river shall be carried out by hdd method. thedetails as described below:sl.no.1.river namesize,inch (mm)approx.chainage, kmhdd length(approx.)metersbrahmaputra river26” (660)1554.5904000
Sector: Petroleum