140m railing steel; 55 pcs handrail carrier for wall handrail; 144m Dismantle/dispose of existing railings with glass filling; 15 m2 gratings light well 0.95x2.89-4.12m; 12,600kg Supporting structure music hall, professional steel; 1,500kg steel structure skylight; 1,700kg steel structure entrance canopy; 250kg grating stairs; 2,250kg roof platform for air conditioning;

140m railing steel; 55 pcs handrail carrier for wall handrail; 144m Dismantle/dispose of existing railings with glass filling; 15 m2 gratings light well 0.95x2.89-4.12m; 12,600kg Supporting structure music hall, professional steel; 1,500kg steel structure skylight; 1,700kg steel structure entrance canopy; 250kg grating stairs; 2,250kg roof platform for air conditioning;