pressure c ooker (1) 18/8stainless steel ( 2) Warranty period : At least 3 years 3) have GS and CE certificates About products, as following: (1) material : 18/10 stainless steel (2)base feature a thick layer of Aluminum sandwiched between s/s for fast warm upand work on all cooking surfaces, such as gas stove, electric stove ,microwaveoven, solar stove, including induction cook-tops. this is the ...