详情描述：
2004,2011,2014,2014A化学成分2004,2011,2014,2014A力学性能2004,2011,2014,2014A抗拉强度2004,2011,2014,2014A屈服强度2004,2011,2014,2014A硬度2004,2011,2014,2014A伸长率
