Tender For geotechnical sub soil investigation and topographical survey by totalstationmachine in each district for all wings of public works department kolkata 2nd call
Tender For corrigendum : supply of geological material for cutting grinding and polishing instrument : : - tabletop high-speed rock cutting apparatus for large samples , tabletop hot plate with spring-loaded glass slide mount system for thin section preparation , tabletop vacuum impregnation system , tabletop double-disc polishing machine , tabletop precision grinding and sectioning machine