This device is designed for professionals and specialized metal fabrication workshops, and performs the following essential functions: Stainless Steel Weld Cleaning (Pickling): Removes oxidation marks and colorations caused by heat after welding processes (such as TIG and MIG welding). Metal Polishing: Restores the shine and luster to the stainless steel surface for a uniform finish. Chemical Treatment (Passivation): Rebuilds the protective chromium oxide layer to protect the metal from future corrosion and rust. Marking: Allows printing logos and data in black or white on metal surfaces through electrochemical reaction. 🧪 Visible box accessories INOX FIT liquid: The plastic container at the bottom, which is a substance used to neutralize acids and clean the surface after work is completed to prevent stains or halos. Plastic holder: For organizing and securing the handle or torch when not in use. Carrying strap: The black strap attached to the device for ease of carrying.