... of the biggest aircraft maintenance hangar facilities for span and covered area during finished and undertaking hangar facilities.No.11 steel ... and difficulties:1. Huge hoisting area:the total hoisting area covered is 250m×88m,it is the biggest single building,using ... thick, YX28-205-820(820mm wide),Sandwich panel with EPS, ROCK WOOL, PU etc insulation thickness around 50mm~150mm, width 950mm or ...