... corrugated steel plate.It is one typical big-span rigid portal steel structure system.Our steel structures include crane beams and rails ... of steel structures, steel bulding, metal building, modular house,Steel frame for warehouse, workshop, garage etc, steel beams, other riveting and ... Surfrace: Paint or hot dip galvanize!10) Packing: Main steel frame without packing load in 40'OT, roof and wall panel ...