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Message: [QUOTE="sutomcat, post: 3464485, member: 27"] Over the last hour or so, the west crane has brought up around 20 pieces of flat grey metal. It looks like they are being installed near the tension ring. Given their color, I wonder if these pieces are the start of the exterior surface of the hard shell part of the roof? I know there are a lot of flattish grey metal pieces in various storage areas around the city. Storage areas that have been used to store material for this project. At this point, almost all the arcs are in place and there isn't much infrastructure steel left to install for the hard shell either. It is looking at this point like the hard shell is going to have a grey, metal exterior. [/QUOTE]