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In the month of July the highest increases in prices were observed in raw materials derived from electric power (2.7%) asphalt products (1.0%), petroleum derivates (1.2%), and extracted arid substances (0.6%), among others. On the other hand, there has been a decrease in prices of the following raw materials: lime, gypsum and plaster (-0.5%), iron and steel (-0.4%), explosives and gases (-0.4%) and metal piping (-0.3%), among others.
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