欧标H型钢HE260C欧标H型钢HE260M欧标H型钢HE280AA欧标H型钢HE280A欧标H型钢HE280B欧标H型钢HE280C欧标H型钢HE280M欧标H型钢HE300AA欧标H型钢HE300A欧标H型钢HE300B欧标H型钢HE300C欧标H型钢HE300M欧标H型钢HE320AA欧标H型钢HE320A欧标H型钢HE320B欧标H型钢HE320C欧标H型钢HE320M欧标H型钢HE340AA欧标H型钢HE340A欧标H型钢HE340B欧标H型钢HE340C欧标H型钢HE340M欧标H型钢HE360AA欧标H型钢HE360A欧标H型钢HE360B欧标H型钢HE360C欧标H型钢HE360M欧标H型钢HE400AA欧标H型钢HE400A欧标H型钢HE400B欧标H型钢HE400C欧标H型钢HE400M欧标H型钢HE450AA欧标H型钢HE450A欧标H型钢HE450B欧标H型钢HE450C欧标H型钢HE450M欧标H型钢HE500AA欧标H型钢HE500A欧标H型钢HE500B欧标H型钢HE500C欧标H型钢HE500M欧标H型钢HE600AA欧标H型钢HE600A欧标H型钢HE600B欧标H型钢HE600C欧标H型钢HE600M)