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     assembling the structure framesassembling the structure frames                 assembling outer envelopeassembling outer envelope
                        assembling the roof frameassembling the roof frame                     assembling the roof panels (PTFE OR ETFE)assembling the roof panels (PTFE OR ETFE)
                        Roof cover material ETFERoof cover material ETFE                       Roof cover material PTFERoof cover material PTFE
     	
