1.2999(X45MoCrV5-3-1)钢材bs816M40圆钢 20ХНМ 40NCD3 1.6511钢棒 UNS-G434
1.2999(X45MoCrV5-3-1)钢材bs816M40圆钢 20ХНМ 40NCD3 1.6511钢棒 UNS-G43400





1.2999(X45MoCrV5-3-1)钢材bs816M40圆钢 20ХНМ 40NCD3 1.6511钢棒 UNS-G43400
1.2999(X45MoCrV5-3-1)钢材bs816M40圆钢 20ХНМ 40NCD3 1.6511钢棒 UNS-G43400
1.2999(X45MoCrV5-3-1)钢材bs816M40圆钢 20ХНМ 40NCD3 1.6511钢棒 UNS-G43400