About Nylon MDS|Nylon with molybdenum disulfide (MoS2) additive. The MoS2 provides self-lubrication and improved wear resistance. Used for gears, bearings, and wear components in dry-running applications. Black or dark gray color (from the MoS2). Machines like standard Nylon. Compare to Nylon GS (graphite-filled, similar concept) and standard Nylon (no lubricant filler).
About Sheet|Thin flat stock, generally under 3/16", used for stamping, bending, shearing, and laser/plasma cutting. It's the starting material for enclosures, panels, brackets, and formed sheet metal parts.