tender for depressed centre grinding disc of size 125 mm (dia) x 7 mm (thickness) x 22.23mm(bore) tospecification a24, confirming to en 12413 standard note: 1.the firm should produce authorized dealershipcertificate along with the offer.2.grinding disc should have residual life of minimum 18 months from the date ofsupply. make:grindwell norton /carborandum universal .