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Individual
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Priority to ES114567UpriorityCriticalpatent/ES114567U/es
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Placa ondulada del tipo que presentan unos canales de fondo redondeado separados por crestas también redondeadas caracterizada porque está for- mada por una placa central metálica recubierta por sus dos caras por una capa asfáltica con amianto sobre las que se colocan dos láminas una a cada lado de metal fino.