7 per cent, 12.On the other hand, steel sector expansion came down to 6 per cent, as against 9.New Delhi: Eight core sectors grew by 6.The output of coal, refinery products, fertiliser and cement grew by 9.3 per cent, 1.However, growth rate in production of crude oil and natural gas recorded negative growth in the month of July.3 per cent and 10.8 per cent respectively in July 2018.6 per cent.6 per cent in July pushed by healthy output in coal, refinery products, cement and fertiliser..6 per cent in the year-ago period.In June, they grew by 7.9 per cent in July last year.8 per cent as against 2.During the April-July period of the current fiscal, these 8 sectors grew by 5.The eight core sector -- Wholesale Concrete bolt Manufacturers coal, crude oil, natural gas, refinery products, fertilisers, steel, cement and electricity -- had registered a growth of 2.4 per cent in July 2017.