bids are invited for ml earthing copper earth plate 60x60x3.15mm copper strip 20x3 mm 40mm dia gi pipe medium provn of 20mm dia gl pipe medium grd provn of charcoal salt main earth lead beyond 7.5m shall paid saperatly , ml repair earth continuity conductor or main earthing lead of 20 x 3 mm copper strip, buried in ground or fixed to wall with saddles and fixing screws etc complete all as specified and as directed , ml test point terminal block made of gun metal phosphorus bronze size 75x75x25mm drilled and screwed including 3 nos 8mm dia 25mm long hexagonal head screw complete all as specified and directed , ml for air termination of lightening conductor, single pointed, copper rod 12mm dia and 300mm long complete all as specified and as directed , sf steel water tubes light grade isi marked galvanised of size 40 mm bore all fittings laid on floor walls for supporting of earthing strip complete all as specified directed by engrincharge total quantity : 146