... , A105,4140/42 , 39NiCrMo3 4130, 4340, 42CrMo4V, and according to custom request Commodity: forged shaft 1.Material: alloy steel ,carbon steel ,stainless ... , metallurgical machinery, precision tools, etc. 9.Size: accordong to customer request or drawing.10.Manufacture: Jiangyin Dongyuan Special Steel Co., Ltd ...