Forging shaft , including forging drive shaft , forging motor shaft .forging gear shaft , forging tie rod , forging mandrel ,forging bail link etc . Forging material : 18CrNiMo7-6 , 17CrNiMo6 ,AISI4130 , AISI4140 , AISI4330 , AISI4340 , AISI4350 ,SAE8620 ,34CrNiMo6 , 30CrNiMo8 etc . According to the client's requirement , we could supply high frequency quenching hardening,carbonization ,nitriding ,surface hardness could reach HRC60 ,which could ensure our quality .