低合金高强度钢板:广泛用于制造厂房,一般建筑及各类工程机械,如矿山和各类工程施工用的钻机,电铲,电动轮翻斗车,矿用汽车,挖掘机,装载机,推土机,各类起重机,煤矿液压支架等机械设备及其它结构件。主要钢号：12Mn15MnVN16Mn15MnV14MnNbQ295A/BQ345A/B/C/D/EQ390A/B/C/D/EQ420A/B/C/D/EQ460C/D/EQ500D/EQ550D/EQ620D/EQ690D/ESN490A/B/C***490A/B***520B/C***570SS490SS540St44-3St52-3St50-2St60-2St70-2StE315StE460StE500A572Gr42/50/60/65A633MA/C/D/ES275JR/Jo/J2G3/J2G4/S355JR/Jo/J2G3/J2G4/K2G3/K2G4E295E335E360S275NS275NLS355NS355NLS420NS420NLS460NS460NL43A/B/C/D/DD/EE55C/EE/FWH60WH410LKBB41BFWH490LKB***3E355DD/EE460CC/DD/EE420DD/EE460EE/EE550DD/EE690CC/DD/EFe430A/B/C/DFe510B/C/DSA588GRA/B/C)