... steel plates ,75mm thickness EPS sandwich panelRoofSTEEL ROOF PLATE Doorplastic steelWindowplastic steelfloorcomposite wood floor boardElectricity ... ,Brace and so on(Aluminum alloy)Technical parameter Roof load :50kg/m2 Wind resistant : 10 Grade ... technology of installment, instruction,or install-training.Application scope: building, railway, highway, bridge, irrigation works, electric power ...