瀏覽次數:126by:wuha
R.G-614锡钴合金
R·G-614 Highhardiness,theblackisbrightandpretty,thecolorandlustreisstable,evenplating,
R·G -614
High hardiness, the black is bright and pretty, the color and lustre is stable, even plating, specially suit for hardware jewelry,decorative process.
#surface#stable#finishing#full#bright#process#decorative#hardness
https://u747_1.web66.com.tw/web/NMD?postId=341028隔音窗
大部份的隔音窗其隔音能力都在35分貝左右,隔音能力較好的隔音窗則可達40分貝,隔音條通常為內避式也就是隱埋在溝榫裡
