首页> 外国专利> Improvements made to the formwork, in particular, of concrete structures of buildings and similar structures, such as tunnels, mine galleries, trenches, etc.

Improvements made to the formwork, in particular, of concrete structures of buildings and similar structures, such as tunnels, mine galleries, trenches, etc.

机译:对模板的改进,特别是对建筑物和类似结构的混凝土结构,例如隧道,矿井,沟渠等的模板的改进。

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