本实用新型涉及一种对筒体组合式液压缸的结构改良。
The utility model relates to an improve structure of a combined hydraulic cylinder.
钢管混凝土边框―钢桁架―混凝土组合筒体及制作方法，属于一种筒体 结构及制作方法。
The invention relates to a composite cylinder with steel tube concrete frame, steel frame and concrete, and the manufacturing method, belonging to a cylinder structure and the manufacturing method.
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