Used for breaking old road surface in municipal construction and destroying the former concrete base during the course of equipment installation in industrial and mineral enterprise.

市政建设中打碎旧路面，工矿企业设备安装中破坏原混凝土基础等。

youdao

Used for breaking old road surface in municipal construction and destroying the former concrete base during the course of equipment installation in industrial and mineral enterprise.

市政建设中打碎旧路面，工矿企业设备安装中破坏原混凝土基础等。

youdao