Alloy Steel 1.251 +Alloy Steel+O1 (2) 1.251 +Alooy Steel+O1 1.2379 +Alooy Steel+D2 1.7035 +Alloy Steel +5140 D2+Titanium nitride 1.7035 +Alloy Steel +5140 1.7035 bir ahama + SUS304 1.7225 + Alloy Steel +4140 1.7225 + Alloy Steel +4140 440C+DLC Alloy Steel 1.2379 +Alooy Steel+D2 440C+DLC Alloy Steel