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Pieza de unión para tubos especialmente para sistemas de calefacción central o semejantes caracterizada porque tiene dos pares dispuestos perpendicularmente entre sí de pasos paralelos esencialmente rectilíneos estando en cada caso un paso de uno de los pares en comunicación con un paso del otro par y mostrando todos los pasos en ambos extremos tubuladuras de empalme de tubo cuyos ejes están situados todos en un plano común.
ES105690U1964-04-231964-04-23Pieza de unión para tubos
ExpiredES105690Y
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