high temperature resisting(1000 celsius degrees), acid resisting, alkali resisting. application: 1) for vacuum coating 2) for making valves grid, inner components of vacuum valves 3) for making lead, supporting wire inner packing: attached labels indicate detail specification and manufacture information outer packing: in cartoons, wooden cases, or according to customers' requirements variety: 99.9% purity pure nickel wire, nickel-chromium alloy wire in 8020 series.