group of 17 elements:
This group includes 15 lanthanides (Cerium, Dysprosium, Erbium, Europium, Gadolinium, Holmium, Lanthanum, Lutetium, Neodymium, Praseodymium, Promethium, Samarium, Terbium, Thulium, Ytterbium) along with Scandium and Yttrium manufacturers wholesalers in India.