Large piano training schools want to buy pianos in bulk. Requirements are: quality must be good, and durability is also the key. Which brand is more qualified?
You ask too much. Few can meet your requirements. I recommend you to see the piano of the Borns brand used by the famous pianist artur rubinstein. Their home suits your requirements very well. Borns's pianos are all hand-made, and the material is also top-grade wood, with a very good texture. It's also strong and durable, you can understand.