European technical supervision: German ROSLAU strings, German ABEL hammers, German STRUNZ spruce single-layer solid wood soundboard/rib, German DEHONIT peg board, Oriental solid wood action, ebony black key solid wood keyboard, original special hydraulic slow down, Anti-oxidation hardware, environmental protection paint.
欧洲技术监制：德国ROSLAU琴弦、德国ABEL榔头、德国STRUNZ云杉单层实木音板/肋木、德国DEHONIT弦轴板、东方全实木击弦机、乌木黑键实木键盘、原装专用液压缓降、防氧化五金件、环保油漆