H13圆钢钢板锻件H13密度是多少? H13 图片

p1Src=//y2.yzimgs.com/uploads/534005/2018115-135532659.jpg?watermark/2/text/6IuP5bee5rS-54m55Yqb6YeR5bGe5p2Q5paZ5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/650/fill/I0E3QTlBOA==/gravity/NorthWest"