METAL: NO CUTTING CHIPS, RUST, NICKS, CUTS, GOUGES, AND ANY OTHER ABNORMAL SURFACEDAMAGE DETRIMENTAL TO FIT, FORM OR FUNCTION. SLIGHT LUBRICATION FILM ALLOWED.BURR SHOULD NOT EXCEED 20% OF MAT'L THICKNESS OR BE DETRIMENTAL TO OPERATOR SAFETY.ALL BEND RADII AND ANGLES TO BE APPROVED BT GROUND EFFECTS ENGINEERING.