The bottom diameter of a small casserole mainly depends on the size of the casserole.

(1) The diameter of the 2.3L boiler mouth is 2 1 cm, and the diameter of the bottom is18cm.

(2) The diameter of the 3L pot mouth is 2 1 cm, and the diameter of the ear is 26 cm.

(3) The diameter of the 3.5L pot mouth is 24cm, and the diameter of the ear is 35cm.

(4) The diameter of 6L pot mouth is 2 1 cm, and the diameter of ear is 32 cm.