AT PRESENT, THE STEEL STRUCTURE WHICH HAS BEEN COMPLETED AT THE MOMENT, IT HAS THE BIGGEST SPAN IN DOMESTIC BY ADOPTING A ROTUND (DIAMETER: 160 METERS), WELDING BALL JUNCTION DOUBLE-DECK NET SHELL STEEL STRUCTURE ROOFING SYSTEM.

• 目前已完成的钢结构是目前国内跨度最大的采用圆型（直径为160米）焊接球结点双层网壳钢结构屋面系统。