... body,bakelite handle,1.2mm body, 1.2mm lid, 1, stainless steel pressure cooker set have 4 safety set, pressure contral valve ... ,open-close /locking valve 2,adopt streamlined design and advanced stainless steel technoloty to dealing with the surface. 3,large area pressure-releasing ... rapidly. 4,open and shut the pot free of push, easy and simple to handle. 5,cover's ponding nest prevents spattering ...