Forged AISI 4340 alloy steel shaft /axle Size:160-1000mm Custom-make steel shaft ... with the drawing. shaft with good quality FORGED AISI 4340 alloy steel shaft /steel axle1,Material:Germany: DIN 1.6565 Japan ... ,forged products,shafts,flanges,hot rolled alloy bars with various materials,such as:carbon steel ,alloy steel ,spring steel,mould steel,bearing ...