对外墙板板缝使用材料密封防水作法简便，并具有工期短、质量高、耐用年限长的优点。

As to the joints between exterior wall panels, waterproof sealant is adopted, which has such advantages as short working period, high quality and long service life.

youdao

对外墙板板缝使用材料密封防水作法简便，并具有工期短、质量高、耐用年限长的优点。

As to the joints between exterior wall panels, waterproof sealant is adopted, which has such advantages as short working period, high quality and long service life.

youdao