7 Years
Special Plastic Tool Steel Bar NAK80 With Extremely Good Mirror Grinding Chemical Composition(%) Grade C Si Mn P S Ni Mo Cu Al NAK80 0.06-0.20 ≤0.35 1.40-1.70 ≤0.030 ≤0.030 2.80-3.40 0.20-0.50 0.80-1...
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