... .2mm body, 1.2mm lid, 1, stainless steel pressure cooker set have 4 safety set, pressure contral valve, safety indicator valve.safety window,open-close ... banking the steam water, and easy to clean.6,pressure-limiting valve,setting pressure accurately and banking the steam water, and easy ... aluminum reunite the bottom, imported high-quality18-8stainless stainless steel pressure cooker set