Our aluminum alloy pressure cookers are produced according to the China National Standard (GB13623-2003), products with multiple safety features: 1) Bottom material: stainless steel and aluminum, compound bottom 2) Can be used gas stove, induction cooker, eletric stove, etc. 3) High intensity 4) Corrosion resistance 5) Steady and durable 6) Heat spreads evenly and rapidly without spot burning Packing: color box