https://niir.org/books/book/complete-technology-book-on-e-waste-recycling-printed-circuit-board-lcd-cell-phone-battery-computers-3rd-revised-edition/isbn-9788178331577/zb,,18b92,a,0,0,a/index.html
components, which could be found in them. these components form the "building blocks" of each item and therefore they are readily "identifiable" and "removable". these components are metal, motor/ compressor, cooling, plastic, insulation, glass, lcd, rubber, wiring/electrical, concrete, transformer, magnetron...