标题: JIS A 1418-1:2000 [打印本页] 作者: lotus999 时间: 2014-12-3 09:35:27 标题: JIS A 1418-1:2000
JIS A 1418-1:2000 Acoustics-Measurement of floor impact sound insulation of buildings-Part 1:Method using standard light impact source
[attach]56712[/attach]作者: admin 时间: 2014-12-3 09:48:34