1.Pollution free material,non-toxic 2.Excellent quality&Competitive Price 3. ISO quality system control 4.With whole or not Specification:Alloy:8011-O/H16/H18/H22/H24Thickness:12-20micsize:100mm,120mm,150mm,etcShape:pre-cut round or square(perforate or not)Certificate:SGS,FDA,ISO9001-2000,LFGB;BVCharacteristic:Pollution free material,ECO-friendlyEspecially for social hookah/shisha ...