> Things made out of wood and metal were actually made out of hardwood and metal. Not so many composites that fall apart instead of wear ala wabi-sabi.

Composites are older than you think: putting thin layers of high quality wood over a lower quality wooden backing goes back at least to the Egyptians and Romans:

Pliny, Book 16: The principal woods for cutting into layers for using as a veneer to cover other kinds of wood are citrus, turpentine-tree, varieties of maple, box, palm, holly, holm-oak, the root of the elder, and poplar. Also the alder, as has been stated, supplies a tubcrosity that can be cut into layers, as do the citrus and the maple ; no other trees have tuberosities so much valued. The middle part of trees is more variegated, and the nearer the root the smaller and the more wavy are the markings. This first originated the luxury use of trees, covering up one with another and making an outside skin for a cheaper wood out of a more expensive one. In order that one tree might be sold several times over, even thin layers of wood have been invented. https://archive.org/details/naturalhistory04plinuoft/page/53...