... Q235 3.treatment:welded various of standards, strong, durable H beams in 6meter, 9meter, 12meterSpecificationsTheoretical weight(KG/M) ... .6506x201x11x19MM103582X300X12X17MM137588X300X12X20MM151594x302x14x23MM175596x199x10x15MM95.1600X200X11X17MM106606x201x12x20MM120692x300x13x20MM166700X300X13X24MM185792x300x14x22MM191800X300X14X26MM210890*299*15*23MM213900X300X16X28MM243912x302x18x34MM286 H beam