For lately year, with the fast development of automotive industry especially the heavy truck, the demanded quantities of shaft parts with larger diameter are more and more imperative.

• 随着我国汽车工业的飞速发展，尤其是重型卡车产量的急剧增长，大直径轴类零件的需求量也与日俱增，作为一种非常适于阶梯轴和回转类零件生产的新工艺，楔横轧也随之日益向大型化发展。