prestresses houses
what is the approx lifetime of prestressed tee beam house? i have seen one of approx 40 years old. i know problems can appear in some prestressed construction after about 30 years. it is also quite difficult to assess the condition. am i remembering this correctly?
IP卡
狗仔卡
发表于 2009-9-15 14:44:35
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡