- Welcome to longhai special steel.
- 17-4PH
- 2012-12-02 15:43:53·4140 PH
- 2012-10-19 20:13:43·1.7225, DIN 42CrMo4, AISI 4142
- 2012-10-19 19:42:38·1.7227, DIN 42CrMoS4, AISI 4140
- 2012-10-17 20:03:43·AISI 4145 Alloy Steel
- 2012-10-17 20:02:00·AISI 4140 Alloy Steel
- 2012-01-16 16:40:39·SAE 4145H
- 2011-12-10 20:49:18·Stainless Steel AISI Type 414