❶ 阍㈢粨鏋勭敤浠涔堢剨𨱒★纴阍㈢粨鏋勭敤浠涔堢剨𨱒＄煡璇
阍㈢粨鏋勬湁寰埚氭潗璐锛屼笉钖岀殑𨱒愯川镓浣跨敤镄勭剨𨱒℃槸涓崭竴镙风殑銆傛渶甯歌佺殑Q235B𨱒愯川镄勯挗缁撴瀯锛岃佹眰浣庝竴镣瑰氨鐢↗422铹婃浔锛岃佹眰楂树竴镣瑰氨鐢↗427铹婃浔锛决345𨱒愯川镄勯挗缁撴瀯锛岃佹眰浣庡氨鐢↗502铹婃浔锛岃佹眰楂树竴镣瑰氨鐢↗507铹婃浔銆GB 50661-2011銆婇挗缁撴瀯铹婃帴瑙勮寖銆嬭〃7.2.7 甯哥敤阍㈡潗镄勭剨鎺ユ潗鏂欐帹钻愯〃 鍙锅氩弬钥冦