冷拉扁钢规格:3*20MM---50*150MM
材质:45#,A3,20CR,40CR,20CRMO,40 CRMO,20MN2A,42CRMO,20MNSI,35CRMO,HG3,Q215,Q235,B16,25CR2MOVA,60SI2MNA,55CRSIA,16MN,40MN等等,可定制选择。