Merck 102765 Copper Oxide Wire Fine About 0.65 X 3 Mm For Elementary Analysis (Surface: Cuo, Core: Cu2O) Acs Cas 1317-38-0Merck 102765 Copper Oxide Wire Fine About 0.65 X 3 Mm For Elementary Analysis (Surface: Cuo, Core: Cu2O) Acs Cas 1317-38-0, Merck102765.0250