Tender For supply of iron duct and perforated tray : -supply and delivery of iron duct and its supports accessories run of duct 600 mm w x 300 mm h as per soqr item no. a. 1 , supply and delivery of prefabricated anodised aluminium perforated trays and its accessories tray of 60 mm w x 40 mm h with cover as per soqr item no. a. 2 , supply and delivery of prefabricated anodised aluminium perforated trays and its accessories tray of 60 mm w x 40 mm h with cover as per soqr item no. a. 3 , supply and delivery of prefabricated anodised aluminium perforated trays and its accessories tray of 150 mm w x 40 mm h with cover as per soqr item no. a. 4 , supply and delivery of prefabricated anodised aluminium perforated trays and its accessories tray of 300 mm w x 40 mm h with cover as per soqr item no. a. 5