闻见学行 发表于 2012-9-3 08:33 * h" O; C/ \& A M. j- }+ [$ j
谢谢指导!我刚买的是一个35年的老房子,侧门一边做了混凝土地面硬化,后院的平台也是混凝土的,但 ...
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You may need a mud jack or concrete level. Try yellow page under MUD JACK to find a contractor. I have heard names like CLASSIC CONCRETE AND MUDJACKING, LOW'S concrete leveling solutions. + a, Z& G6 w+ L4 _FYI only, no affiliation or personal experience with these companies.