日本喷奶水中文字幕电影_亚洲一区欧美二区_国产一区二区欧美_女人高潮叫床视频_国产资源一区二区三区_国产二区视频在线播放_美女露出给男生揉捏_北条麻妃一区二区免费视频_国产伦精品一区二区三区高清版禁 _久久久久国产精品一区三寸

The core part of magnetic stirring is a ring-shaped strong magnetic coupling stirring device. A plurality of magnetic steel rings are made of two powerful permanent magnets inside and outside; the inner magnetic steel body is sealed in a stainless steel sealed cylinder to connect the stirring part, and the sealed cylinder and The kettle cover, kettle body, and fastening connection form a static sealed cavity, so that the reaction medium is completely sealed in a statically sealed state, without any leakage, pollution or personal danger; the speed-regulating motor drives the outer magnetic steel body, and the strong magnetic force passes through the stainless steel without contact The made sealed cylinder attracts each other with the strong magnetic force of the inner magnetic steel body enclosed in the sealed cylinder, and is mutually positioned to act on the axial rotation traction to perform high temperature and high pressure stirring reaction.