Nickel rod production grade:

National standard: N4, N5, N6, N7

American Standard: N02200, N02201, NCu28-2.5-1.5, NCu40-2-1

Nickel rod implementation of standards:

GB: GB / T4435-1984

American Standard: ASTM B160

Niobium production status:

Hot working condition (R)

Cold working state (Y)

Annealed state (M)

Niobium manufacturing process:

Hot rolled

Hot forging

Car light (polished)