Electrical
Trigger Plate 1x1
Used to trigger electrical events when stepped on.
Repair with Forged Iron, Mechanical Parts, and Electrical Parts.
Crafting
Craft at Workbench · makes 1
Salvage drops
Extra parts when salvaged with a wrench, ratchet or impact driver.
Drops when destroyed
Iron× 5-20
When it collapses
Falling, it leaves 
Scrap Metal Pile (75% of the time) where it lands.