stainless steel 202 cold rolled coil 3 00 series stainless steel raw materials for production are no longer under tight constraints, so the 200 series will no longer be greater development. Several Indians was involved in the development of 200 series stainless steel, after returning to India, is a relatively rich manganese resources from India, nickel resources based on the situation of, in the United States developed 200 series steel stainless steel varieties back to India, resulting in a phenomenon of development, in the United States in the history of the Indian result.