Ikea is a worldwide distributor and manufacturer of furniture and home decor items. Based in Sweden, the company originated in 1943 and as of 2008 has become the largest furniture retailer in the world.
They make and sell ready to assemble furniture, house appliances, electrical items and light fixtures, children's toys, etc.
They use all types of materials. All types of woods, alloys, metals, plastics, etc. Most common would probably be fiberboard in their furniture, especially tables.
They use almost all types of forming, cutting, joining, and finishing technologies. Seriously, walk around that place. It's hard not to find an example of one.
Overall, I expected a maze masked in a furniture store and that's exactly what I got. I expected cheap, easy to build and utilize furniture and that's what I got.