Armored Vent A highly resistant Vent. Construction Cost → Lead Plate x3→ Titanium Plate x2→ Carbon Fiber x1→ Copper Wire x1→ Gears x1→ Transistor x1 Hull Integrity Airtightness: 100%Insulation: 99% Properties Size 1x1, Cover: 100% Research Prerequisites Armored Structure Reinforced Structure Atmosphere Control Habitation Structure Construction