Tender For corrigendum : roof bolting in ug by hiring of dgms approved portable hydraulic roof bolting machine with wet drilling arrangement drill 1.50mtr/1.80mtr length hole with 27mm dia drill bit for anchoring 20/22 mm dia roof bolting with resin... at umaria colliery
Tender For corrigendum : manufacture and supply of coalcompartmentassembly comprises of coal nozzles assemblies and adjustable coal nozzle tips for bhel make boilers at ph-iv, stps-sarni