Gem Bids For 10 Copper Crucible Of 350 Mm Dia. And 3640 Mm Length For Var Melting As Per Drawing- D-4116-03-009a 280 Mm Id And 1500 Mm Length Copper Crucible As Per Sl No. -5 Of Drawing No. - Nfcomscc12-03 Copper Crucible Of 280 Mm Diameter And 2840 Mm Length For Var Furnace As Per Drawing- D-4116-03-009a