Several groups of ceramic electrodes imported from Germany are used to treat the film, aluminum foil, metal film and paper coil. The narrow drawer corona treatment system adopts stainless steel cover and aluminum oxide plate design structure, which is anti-oxidation and anti-corrosion. The electrode is installed in the form of drawer slide, which is convenient for disassembly and assembly. It is easy to clean and maintain quickly, and it is convenient to wear and receive materials. The equipment is equipped with roller stop and electrode in place protection.