India, Oct. 23 -- Pipes are the quiet backbone of the energy business. Every gas field needs a way to reach customers, and that means thousands of kilometres of coated steel pipe laid across long-distance lines. The buyers are usually large midstream companies, they sign multi-year contracts, and manufacturers with plants close to the project and a record of timely delivery tend to win the biggest orders. The Nifty 50 was at 22,486.40, down 0.89%. Meanwhile, Sensex also fell 0.54% to 72,855.18 on Thursday. Meanwhile, Shares of Welspun Corp Ltd. were trading at Rs. 2,352.10, down 3.77 percent from previous close of Rs. 2,444.20. The stock opened at Rs. 2,408.00 and reached an intraday high of Rs. 2,469.00 and low of Rs. 2,338.00. The comp...