... 7)Different roof and wall panel: Single colorfull corrugated steel sheet0.326~0.8mm thick,(1150mm wide), or sandwich panel with EPS, ROCK WOOL ... steel frame without packing load in 40'OT, roof and wall panel load in 40'HQ! Putian steel structure system Only need ... than 6m Maintance systemRoof EPS/rock wool/PU sandwich board Wall EPS/rock wool/PU sandwich board Door PU foamed rolling door Window ...