欧美人与动牲交a

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            What are brick and wood structure, mixed structure and reinforced concrete structure?

            Brick and wood structure means that the main components of the load-bearing structure are constructed of bricks and wood. For example, a house is built with wooden frames, brick walls and wooden columns.
            Mixed structure means that the main components of the load-bearing structure are constructed of reinforced concrete and brick. For example, the beam of a house is made of reinforced concrete, the brick wall is used as the load-bearing wall, or the beam is made of wood, and the column is made of reinforced concrete.
            Reinforced concrete structure, refers to the main components of the load-bearing are built with reinforced concrete.Including thin shell structure, large formwork cast-in-place structure and the use of sliding form, lifting plate, etc.
            Zhengzhou Xinfeng Machinery Co., Ltd. Main concrete mixer, concrete mixing station, stabilized soil mixing station, concrete batching machine, concrete conveying equipment, please call to discuss!

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            ? 欧美人与动牲交a

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