Looks like SEM texture coat. Someone sanded those smooth, use texture coat then painted them black with LVP and touched up the silver.
1985 F-350 XL | 460 | C6 | "Rufus Maximus"
1986 F-150|Standard Cab|4x2|300Six|C6Transmission w/3.08 rear|Name:TBD
2021 Ranger XLT Super Crew | Cactus Grey | black out package | max tow