Steamed hair is basically the natural wavy machine weft hair which has been put on rollers and steamed in order to obtain the pattern. These are not natural textures so the pattern would not be permanent and will end up getting wavy in a couple of washes, since no chemicals have been used to give it a permanent textures.
Two or three of the base colors have been mixed in order to make these blended colors:
Wavy hair is 100% raw hair with no steam procedure done on it. Hence the pattern is permanent, so the wavy hair will always remain wavy even after hair wash.