thanks again, but I am a little bit confused

回答: NP. Believe or notdallascowboys2012-09-26 20:51:51

Should stairs be considered as high traffic area? why semi gross better for high traffic area?

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回复:thanks again, but I am a little bit confused -dallascowboys- 给 dallascowboys 发送悄悄话 (368 bytes) () 09/26/2012 postreply 20:59:15

got it. thanks. :D) -08明前茶- 给 08明前茶 发送悄悄话 08明前茶 的博客首页 (0 bytes) () 09/26/2012 postreply 21:05:02

您是专家, 请教:how about several mixed layers? -pyramid- 给 pyramid 发送悄悄话 pyramid 的博客首页 (150 bytes) () 09/27/2012 postreply 08:11:45

It is not a good idea. -Dallascowboys- 给 Dallascowboys 发送悄悄话 (244 bytes) () 09/27/2012 postreply 08:30:58

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