精品人妻人人做人人爽,99re6在线视频精品免费,国产精品免费在线播放,中文字幕九七精品乱码 免费国产一级 片内射空姐_欧美日韩成熟女人屄屄视频

Steam heating, convenient water supply and drainage, reasonable thermal cycle, convenient temperature measurement, complete steam and water interface, uniform temperature, good thermal insulation and sealing, automatic temperature control, simultaneous cooling up and down, easy to open the cover, fast cooling cycle. The double steam solenoid valve is used to control the temperature, and a compressed air pipe is provided to ensure accurate water temperature control and uniform temperature. The insulation is sealed and the cover is convenient.