... lid. sandwich bottom 1,stainless steel low pressure cookers have 4 safety set, pressure liminting-valve, safety window, safety indicator ,open-close /locking ... and durable. 7, imported high-quality 18-8stainless steel and alloy aluminum reunite the bottom, imported high-quality ... 18-8stainless steel body and cover. 8, three layers reunite and bottom,suit to electromagnetic stove,gas hob,electri ...