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1. COP 1838HE+

Versio robustior et emendata seriei 1838, apta ad forandum profunda foramina magni diametri. Partes renitentes attritioni fortiores, energia percussiva maior, functio stabilis in stratis petrosis deterioribus, efficacia constructionis subterraneae in mineris magna ex parte augenda.
2. Schema Diagrammaticum


3. Imago Modello Producti et Particularia Producti

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