Shanghai ChengAnDa Industrial Developing Co.,Ltd

jFactory price direct selling:deformed bar:DIN 488/1-1984?DIN 488/2-1986BSt420S    ??S;   JIS G 3112-1987SR235?SR295?SD295A?SD295B?SD345?SD390;   NZS3402-1989CTO AC?M7-1993A400C;   ASTM A 706/a760M-1995b60000PSI    60(400);   ISO 6935/2-1991RB300?RB400?RB400WUPN?CHAN?beam channel?channel beam/IPE?STEEL?I-beam/equal angles?angle iron?angle steel/flat bar?flat steel [详细介绍]