Kitchen aluminium foil ranks the first among aluminum foil products. Other relative products include cigarette foil, air conditioning foil, foil container foil, transformer foil etc. Kitchen aluminium foil is mainly used for food wrapping and packing for various purposes like barbecues, picnics, baking, cold preservation etc. Its raw material is 8011 aluminum, leading alloy for all kinds of aluminium foil sheets. 8011 belongs to 8000 series of aluminum, with a Si content of 0.5% to 0.8%, Fe content 0.6% to 0.9 and a slight content of micro elements. Obviously it has more impurities than 1000 series of aluminum like 1060. Owing to the fact that its content of other elements surpasses 1%, 8011 aluminum shows better properties as foil sheets. Its usually processed into foil rolls rather than sheets or plates