标题: JIS A 1418-2:2000 [打印本页] 作者: lotus999 时间: 2014-12-3 09:34:44 标题: JIS A 1418-2:2000
JIS A 1418-2:2000 Acoustics-Measurement of floor impact sound insulation of buildings-Part 2:Method using standard heavy impact sources
[attach]56711[/attach]作者: admin 时间: 2014-12-3 09:48:31