Tank cleaning detergent covers more then 140 types of tank cleaner.  Alkaleen Safety Liquid, Hcf, LAC, Edge Cleaner, Seaclean, Metalbrite,  Bunker Cleaner, CTC VLC, DI water, Methanol, p Xylene, Butyl Cellosolve, Buffer Cleaner, Veg oil cleaner, Inviro Clean, Advance Tankclean etc. And may more Tank cleaners are in this group.