Ronuk Industries Ltd supplies Heavy Duty Electro-Cleaner for Steel. Ronuk Industries Ltd offers various types of metal cleaner, pickling chemicals, general metal finishing, conversion coatings, lacquers, strippers, antiquing chemicals, basic chemicals. Heavy Duty Electro-Cleaner for steel has high capacity for removing a whole variety of soils. This Heavy Duty Electro-Cleaner is comparatively tolerant to both hard water and to hexavalent chromium and ideal for use in areas where hard water may be encountered.