“Elite Transformers & Switchgears, Jalandhar, only use BIS Certified CRGO (Laminations)”. Transformers CRGO (lamination) shall be made of BIS standard steel sheet and strip in accordance with certain Indian Standard (IS) specifications. BIS certification for CRGO (Cold Rolled Grain Oriented) steel signifies that the product meets the standards set by the Indian government for quality, safety, and performance. CRGO steel is widely used in electrical transformer cores due to its superior magnetic properties.