... needs, usually sky blue, grey, bright red, white. 7.Inner diameter: 508/610mm 8.Width of the color coated steel ... structure,surface sheet of balcony,frame of window,door,door of garage,roller shutter door,booth,persian blinds,cabana,refrigerated wagon and ... so on Indoor:door,isolater,frame of door,light steel structure of house,sliding door,folding screen,ceiling,internal decoration of ...