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国外快速自行架设的塔式起重机王要是350KN·m以下的轻型塔机,基本结构形式为固定式,多数是下回转,塔身与起重臂可以折叠,起重臂多为格构式,部分有箱形结构。此类塔机主要产于欧洲(德国、法国和意大利),但1996年销量明显下降。法国PENER公司最近生产一种最大起重量2t的
The tower cranes erected rapidly abroad should be light tower cranes of 350KN · m or less. The basic structure is of fixed type, most of them are under revolving. The tower and the boom can be folded. The boom is mostly of lattice type. Box-shaped structure. Such tower cranes are mainly produced in Europe (Germany, France and Italy), but sales have dropped significantly in 1996. PENER France recently produced a maximum capacity of 2t