Merck 102767 Copper Oxide Wire About 0.65 X 6 Mm For Elementary Analysis (Surface: Cuo, Core: Cu2O) Acs Cas 1317-38-0Merck 102767 Copper Oxide Wire About 0.65 X 6 Mm For Elementary Analysis (Surface: Cuo, Core: Cu2O) Acs Cas 1317-38-0, Merck102767.1000