heat exchanger aluminum foil a.fully certification b.used widely in residential air conditioning Units Aluminum Foil for Heat Exchanger 1. Alloy type: 1100, 1200, 8011, ... flat;free of black spot,line mark,creases,etc.7. Core: Aluminium / Steel8. Physical characteristics:Tensile Strength:90135MPAElongation:>4%Wettability: ... :+/- 8%Pin Hole: 0/Sq.Mt.Splicing: 0/Roll heat exchanger aluminum foil