what causes that? How to fix it?
锈斑在室外墙转角上
所有跟帖:
• 那应该是Metal Corner Bead, 可能外面的stucco太薄, 引起它长锈, -source4book.com- ♀ (199 bytes) () 09/20/2015 postreply 08:21:19
• It has been painted several times. I wonder if there is water in -kathyzh- ♀ (0 bytes) () 09/20/2015 postreply 08:46:06