Vent Hole Plugs in Drilled and Punched Drain Holes vs. Plasma Cut Holes
Steel Manufacturing Blog: Keeping it Steel
Closing or sealing vent holes in any steel that has been Hot Dip Galvanized can be time consuming and expensive. If the closure is done by welding the Vent Hole shut, the welding process will also do a lot of damage to the galvanized surface.