... supply all kinds of steel structures, steel building, metal building, modular house, steel frame for warehouse, workshop, garage etc, steel beams, other riveting and ... Column and beam: Material Q345(S355JR)or Q235(S235JR) steel, all bolts connection! Straight cross-section or Variable cross- ... Two lays of Anti-rust Painting!10) Packing: Main steel frame without packing load in 40'OT, roof and wall panel ...