معنى النيبتنيوم عنصر مشع في القاموس

Containing by weight antimony as the principal other element

Goods, as follows (a) connection and contact elements for wires and cables; (b) wafer probers

Switch blades, crossing frogs, point rods and other crossing pieces

Prefabricated structural components for building or civil engineering

Spent (irradiated) fuel elements (cartridges) of nuclear reactors