The defoamer is a mixing device that stirs basic materials and discharges bubbles. It is mainly used in the field of mixing and stirring materials of high-tech, sharp and precise products such as light-emitting diodes (LED), touch screens (TP), medical devices, electronic components, nano-powder materials, fine chemical materials, printed electronic materials, electronic packaging materials and new energy materials. Such as phosphor, silica gel, silver paste, aluminum paste, adhesive, ink, silver nanoparticles, silver nanowires, LED/OLED/SMD/COB conductive silver paste, insulating paste, RFID printed conductive ink and anisotropic conductive adhesive ACP, conductive paste for thin film solar cells, conductive ink for PCB/FPC, cosmetics and so on.