3-1-10石料、混凝土预制块衬砌

1)踏步、脚手架、拱架的制作、安装、拆除、移动;2)模板的制作、安装、拆除、修理;3)混凝土运输、浇筑、捣固及养生;4)拌和、运输砂浆;5)选料、砌筑、勾缝、养生。




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