Incorporated on 22 Aug.'85, Harpratap Steels was promoted by C S Kairon, H S Kairon and J S Dhillon (an NRI) in the assisted sector along with the Punjab State Industrial Development Corporation. The company came out with a public issue in Apr.'94 to part-finance the project for the manufacture of galvanised steel sheets in collaboration with Nippon Kokan Kaisha, Japan. The process adopted for the manufacture of GP/GC sheets by HSL is in consultation with their technical collaborators. The company would adopt the process of continuous hot dip uncoiling, preheating, galvanising, forced cooling, chemical treatment and finally re-coiling or cutting to desired length on the same production line. The project is being implemented in technical collaboration with Nippon Kokan Kaisha with co-operation from Nichimen Corporation. The company's products are galvanised or zinc-coated steel sheets. Galvanised corrugated sheets provide a non-combustible, termite-proof, strong and durable protection for roofing which compares better with conventional roofing materials like asbestos cement sheets. Galvanised plain sheets are used in a number of industrial appliances, agricultural, automotive uses, cold storages, etc.