Repair of surfaces, defects, cavities and undercuts with other materials (e. g. spackle) is not allowed.

采用其他材料对表面的缺陷、洞或向下的凹陷进行修补都是不允许的。

youdao

Repair of surfaces, defects, cavities and undercuts with other materials (e. g. spackle) is not allowed.

采用其他材料对表面的缺陷、洞或向下的凹陷进行修补都是不允许的。

youdao