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兹对铁道行业标准“ＴＢ／Ｔ ２９２７－１９９８高分子材料钢轨绝缘件”进行修改，修改内容如下： １．表２中，“宽腰Ａ型”改为“宽腰”，“自锁宽腰Ａ型”改为“自锁宽腰”。 ２．钢轨绝缘件的外型尺寸： 图１中小裙边：“１５．９５”改为“１３．９３”；“５０．４２”
This railway industry standard “TB / T 2927-1998 polymer material rail insulation” be amended as follows: 1. In Table 2, “wide waist A type” to “wide waist”, “self-locking wide waist A type” to “self-locking broad waist.” 2. Rail insulation parts Dimensions: Small skirt in Figure 1: “15.95” to “13.93”; “50.42”