在横跨上海市区的南北高架道路的北端，有一家专业生产冷冻空调设备的明星企业——上海冷气机厂。近年来，国内制冷空调行业由于受到原装进口产品和合资企业产品的巨大冲击，市场份额的争夺日趋白热化。原先处在领先地位的一批国有企业，因其品种老化、技术滞后，已面临产品积 At the northern end of the north-south elevated road across Shanghai, there is a star enterprise that specializes in producing refrigeration air-conditioning equipment—Shanghai Air-conditioner Factory. In recent years, the domestic refrigeration and air-conditioning industry has been greatly affected by the huge impact of original imported products and joint venture products. A group of state-owned enterprises that were previously in a leading position have already faced product product due to aging and technological lag