2011-03-252011-03-254-9-99 17:2001https://hdl.handle.net/1911/41160The origin of the image is Foreign. Watermark Unknown.PhotoengForeignNational Electronics, National. Smart solutions.nationalElectronicsa01snationalElectronicsa01s开关插座；外观都一样，其实不一样； [National Electronics. Matsushita Electric Works (China) Co., Ltd. Shanghai Company. National switch plugs. They may appear same, but their qualities are quite different. Smart Solutions. We care not only the appearance but the perfection of inner quality.]ElectronicsMedia and Information TechnologyNational Electronicsnewspapers [报纸]