Tender For replacement of rusted ducting of fresh air hot air ventilation fans of dg rooms at bsnl hq, nd. ch to op. and mtce. of various ems of bharat sanchar bhawan, h.c. mathur lane, janpath, new delhi janpath, nd.
Tender For supply of corrugated flexible ducting for machine room ventilation as per clw drg no. 1209-11.3 44-051, alt-1 or latest. (a) od-104mm plus upto 3mm and minus upto 4mm approx. (b) length 450m m plus 20mm minus 5mm (c) materials neoprene rubber with n t s wire of 1.5mm. (d) variations in te st results - physical and chemical approx. upto plus/minus fifteen percent to be accepted. [ warranty period: 30 months after the date of delivery ]
Tender For supply of corrugated flexible ducting for battery box ventilation with both ends fixing clamps suitable for 3-phase locos as per lgd's drg. no.c/els/lgd/bat/3/44 (alt-1). [ warranty period: 30 months after the date of delivery ]
Tender For supply of corrugated flexible ducting for machine room ventilation as per clw drawing no. 1209-11.34 4-051 alt1 or latest. [ warranty period: 30 months after the date of delivery ]