Refrigerator,   washing machine,

air conditioning, microwave oven, lighting, TV, audio and   video

Small   corrosion points, dark spots, band marks, 

 zinc particles, passivation defects   are allowed

No   corrosion spots are allowed, but minor   indentation,

scratch, zinc flow   ripple, minor passivation defects are

  allowed in a small area, and the FA   surface

 is maintained on the other   side at least