As a professional steel structure house designation (column) factory - 1. customers drawing is welcome; 2. free designation No.DescriptionI. Main steel frame 1Main components material costs, production costs （Including shot blasting rust remove, and Red painting of thick 40um） 2M24 Ground anchor bolts 3M20 High strenth bolts (10.9) 4M18 and M22 nutsII. Sub Steel Beam System: 1Jointed Strut ...
