... , steel bulding, metal building, modular house, steel frame for warehouse,workshop, garage etc, steel beams, other riveting and ... other type bracing made from angle, round pipe, etc 6) C or z purlin:Size from C120~C320, Z100 ... for you, pls supply us the following parameter together with detail size: 1)Live load on roof(KN/M2) 2)Wind ... and min wheel pressure! Steel structure warehouse made in china