热轧圆钢规格、重量(GB702
热轧圆钢规格、重量(GB702-72)直径(d)重量(kg)直径(d)重量(kg5.50.1865619.3360.2225820.746.50.2606022.1970.3026526.0580.3
热轧圆钢规格、重量(GB702