Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
答:Ⅰ级:屈服235MPa,抗拉370MPa伸长率≥25%Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ⅱ级:屈服335MPa,抗拉510MPa伸长率≥16%Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!hÌ¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h[此贴子已经被作者于2007-1-24 11:24:56编辑过]Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h
Ì¿oCI;¶Nbbs.3c3t.com5[îÉ!h