Product features: 1. Imported Teflon anti-corrosion coating, which can be wiped clean and never rust, and anti-corrosion cast aluminum heating plate heats up quickly. 2. Multiple samples are processed at the same time without cross contamination. 3. All pillars of DBF type electric heating plate are made of polytetrafluoroethylene to minimize metal parts entering the laboratory. 4. Customized time setting function, segmented temperature control, and processing of different boards as required. 5. The panel and control box can be made into components, so that the acid mist during the experiment will not corrode the components in the control box, thus increasing the service life, and multiple samples can be processed at the same time without cross contamination.