请问大家:用气取暖,是不是一定要做 ducts cleaning? 需要多久做一次? lapine 发表于 2012-6-6 15:31 http://bbs.51.ca/images/common/back.gif
回复 云高天阔 谢谢云版。 lapine 发表于 2012-6-7 12:20 http://bbs.51.ca/images/common/back.gif