bids are invited for supply of certain items copper alloy gate valve for waterworks purpose - as per is 778 (q3) , gi pipe 15mm bore, medium class isi marked , gi pipe 20mm bore, medium class isi marked , 4 inch cp waste coupling for sink , flat three core copper, pvc insulated and pvc sheathed industrial cable size 2.5 sqmm , flat three core copper, pvc insulated and pvc sheathed industrial cable size 4 sqmm , 4 sqmm 2 core multi stranded aluminium conductor, flat twin sheathed service cable isi marked , 6 sqmm 2 core multi stranded aluminium conductor, flat twin sheathed service cable isi marked , 10 sqmm 2 core multi stranded aluminium conductor, flat twin sheathed service cable isi marked , 16 sqmm 2 core multi stranded aluminium conductor, flat twin sheathed service cable isi marked , gi elbow 15mm isi marked , gi elbow 20mm isi marked , gi elbow 25mm isi marked , gi elbow 40mm isi marked , gi elbow 50mm isi marked , gi elbow 80mm isi marked , gi elbow 100mm isi marked , gi union 15mm isi marked , gi union 20mm isi marked , gi union 25mm isi marked , gi union 40mm isi marked , gi union 50mm isi marked , gi tee 15mm isi marked , gi tee 20mm isi marked , gi tee 25mm isi marked , gi tee 40mm isi marked , gi tee 50mm isi marked , gi reducer socket 20x15mm isi marked , gi reducer socket 25x20mm isi marked , gi reducer socket 25x40mm isi marked , gi reducer socket 25x15mm isi marked , gi reducer socket 50x40mm isi marked , gi reducer socket 80x50mm isi marked , gi reducer socket 50x20mm isi marked , gi tee reducer socket 20x15mm isi marked , gi tee reducer socket 25x20mm isi marked , gi tee reducer socket 40x25mm isi marked , gi plug 15mm , gi plug 20mm , gi plug 25mm , gi plug 40mm , gi plug 50mm , gi reducer elbow 20x15mm isi marked , gi reducer elbow 25x20mm isi marked , gi reducer elbow 25x40mm isi marked , gi socket 15mm isi marked , gi socket 20mm isi marked , gi 1 76socket 15mm isi marked , gi socket 20mm isi marked , gi socket 25mm isi marked , gi socket 40mm