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据海外新闻媒体报道,近几年在国际建材市场上,铝合金门窗的订单大幅萎缩,气密窗异军突起,在有些地区正呈李代桃僵之势.
According to overseas news media reports, orders for aluminum alloy doors and windows have shrunk dramatically in recent years in the international market of building materials. The gas-tight windows have sprung up everywhere.