a bottom cover is arranged at the bottom of the bottle body; the bottom cover comprises an inner bottom cover and an outer bottom cover which are screwed together by thread.
瓶体底部设底盖,该底盖包括可通过螺纹旋合在一起的内底盖和外底盖。
a cavity between the wood inner bottom (6) and the outer bottom (9) is provided with an electromagnetic oven heating device.