碳素工具钢: C70U C80U C105U C110U C125U C135U C70W2 C80W2 C105W2 C45U C60U C85U 旧钢号; C70W1 C80W1 C105W1 C110W C125W C135W C45W C60W C67W C75W C55W C85W 材料号;
1.1520
1.1525
1.1545
1.1554
1.1563
1.1573
1.1620
1.1625
1.1645
1.1730
1.1740
1.1744
1.1750
1.1820
1.1830