+4140 +application
Forged Bars Scm440 42CrMo4/1.7225 4140 Strength Tool Steel Bar
4340 Forged Steel Bar 817m40 36CrNiMo4 34CrNiMo6 1.6582 1.7225 42CrMo4 4140 4130 8620 080m40 070m20 1045 1.1191 C45 S45c 25crmo4
High Precision Machined Parts Shaft Gear