Most drain pipes are made of copper
steel
Drain covers
Magnesium
a man dog is a good type of metal
One can purchase drain covers at various retailers online. One can purchase drain covers online at websites such as Hard To Find Items, New Pig and Amazon.
Magnesium.
Magnesium
Probably not. If there are any drain covers made of iron, it is very unlikely that it is pure iron, as it would rust away quickly with all the water rushing past it regularly. It might have been coated or mixed with an other metal such as bismuth or antimony to prevent rust.
sometimes they have a magnet to catch metal shavings and particles
There are metal covers for cell phones, patios, and carports. A metal cover for a cell phone can be purchased from eBay or a cell phone retailer. There are patio stores that offer metal cover awnings and there are even metal covers available for use as carports or recreational vehicle covers.
An open drain has no covers while a covered drain does.