Covering | OPTIONAL. Extrued PP, 7 mils minimum average thickness, 6 mils minimum thickness at any point or Extruded foamed PP, 7 mils minimum average thickness, 6 mils minimum thickness at any point or Extruded PE, 5 mils minimum average thickness, 4 mils minimum thickness at any point or Extruded foamed PE, 5 mils minimum average thickness, 4 mils minimum thickness at any point or PVC, 6 mils minimum average thickness, 5 mils minimum thickness at any point or Polyester, 7 mils minimum average thickness, 6 mils minimum thickness at any point. |