... of steel structures, steel bulding, metal building, modular house, steel frame for warehouse,workshop, garage etc, steel beams, ... and beam:Material Q345(S355JR)or Q235(S235JR) steel, all bolts connection! Straight cross-section or ... dip galvanize! 10) Packing: Main steel frame without packing load in 40'OT, roof and wall panel ... pressure and min wheel pressure! Steel structure warehouse made in china