What is the title of “井 如”? The “Design Specifications for Urban Roads and Buildings and Buildings” mentioned that “the underground pipeline manhole cover in the sidewalk must be flattened with the ground, and no manhole cover must be used …”
What is the title of “井 如”? The “Design Specifications for Urban Roads and Buildings and Buildings” mentioned that “the underground pipeline manhole cover in the sidewalk must be flattened with the ground, and no manhole cover must be used …”