... , nice appearance fast construstion 3,Long service life steel structure bridge NameQingdao Yili Steel Structure & Engineering Co.,Ltd. Area Over ... with air pistol;5)Own the hot dip galvanize zinc pool ourself ;6)Mark every beam on the bottom plate ... poultry shed ,garden shed ,guard room ,police kiosks ,kiosks ,stairs ,bridge, exhibition hall, prefab house ,storage ,garage ,oil station , platform ,the ...