上海申通地铁有限公司董事长俞光耀在昨晚的一长新闻发布会上称，发生故障的系统是由卡斯柯信号有限公司制造的。
The system that had the fault was made by Casco Signal Ltd., Shanghai Shentong Metro Co. Chairman Yu Guangyao said at a press conference yesterday evening.
上海申通地铁有限公司董事长俞光耀在昨晚的一长新闻发布会上称，发生故障的系统是由卡斯柯信号有限公司制造的。
The system that had the fault was made by Casco Signal Ltd., Shanghai Shentong Metro Co. Chairman Yu Guangyao said at a press conference yesterday evening.
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