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During the month of April the highest increases took place in consumed raw materials of Petroleum Derivates (4.0%), Asphalt Products (4.0%), Glass (2.9%), Metal Piping (2.7%), Iron and Steel (2.5%), and Explosives and Gases, among others. On the other hand, prices decreased in raw materials related to Electric Power (-4.6%) Lime, Gypsum and Plaster (-1.5%), Tar Sands (-0.3%) Artificial Cements (-0.2%), and Woods and Cork (-0.2%), among others.
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