It is suggested to rein - force local bearing wall's strength by raising up the grade of cement sand grout.

建议提高砂浆强度等级在砖砌体局部加强强度。

youdao

It is suggested to rein - force local bearing wall's strength by raising up the grade of cement sand grout.

建议提高砂浆强度等级在砖砌体局部加强强度。

youdao