Tender For corrigendum : supply of fuel oil gauge , lube oil pressure gauge , duplex air pressure gauge 4 inch mr and fp self illuminated with led this is a safety item , 4 inch single air pressure gauge m r self illuminated with led this is a safety item , 6 inch single pressure gauge b p self illuminated with led this is a safety item , booster air gauge self illuminated with led , 4 inch control air gauge self illumination , fuel oil level gauge with capacity of 6000 ltr to drg no tpl 9307 alt nil , cp pressure gauge , bc pressure gauge