European technical supervision: German ROSLAU strings, German FFW hammers, German STRUNZ spruce single-layer solid wood soundboard/ribs, German DEHONIT pegboard, Oriental solid wood action, ebony black key solid wood keyboard, reinforced middle plate, plus Thick five back columns, original special hydraulic slow down, environmental protection paint, solid wood pedal linkage
欧洲技术监制：德国ROSLAU琴弦、德国FFW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、加强型中盘、加厚五背柱、原装专用液压缓降、环保油漆、实木踏板联动