Does Witten belong to the Pearl River Piano? How about the quality?

Witten Piano is a sub-product of Pearl River Group, but it is embarrassing that although it belongs to Pearl River, it is not manufactured in Guangzhou Pearl River Piano Factory, but assembled in a small factory in Zhejiang. Brand quality can't be compared with those three series of Pearl River orthodoxy. (The three formal Pearl River brands are Pearl River, Riethmuller and Caesar Castle series)