20号工字钢规格?10号槽钢规格？

20a号工字钢规格:h=200mm,b=100mm,d=7mm,t=11决末皮钟每谁议湖绍.4mm,t=9mm,r1=4.5mm20b号工字钢规格:h=200mm,b=102mm,d=9mm,t=11.4mm,t=9mm,r1=4.5mm10号槽钢规格:h=100mm,b=48mm,d=5.3mm,t=11.4mm,r=8.5mm,r1=4.25mm