Conduit Single Corner
While not as sturdy as solid concrete, iron constructions have high structural integrity, requiring fewer support pillars.
Salvage drops
Electrical Parts× 1
Iron× 2-6
Extra parts when salvaged with a wrench, ratchet or impact driver.
When it collapses
Falling, it leaves 
Scrap Metal Pile (60% of the time) where it lands.
Where to find (16 POIs)
Navezgane General Hospital (tier 5), ChemTech Distribution Center (tier 4), Don Vittorio Spagetto Residence (tier 4), Granddaddy's Cable Regional Service Center (tier 4), Ironwood Paper Mill (tier 4), Jeffelon Zuckergates Estate (tier 4), NDC Checkpoint One (tier 4), NPD 3rd Division (tier 3), The Serrano Residence (tier 3), The Shady Swine (tier 2), Demolition Site, Friendszone Sports Center, Hybrid Energy Substation #4, Natas Parking, Navezgane Public Library, Power Distribution Station #1.
Points of interest built with this block (any of its variants), the highest tiers first, from the game's prefab files.