That means that 'x' is made from steel of the said kind (steel grade).
threads are made by high carbon steel and high speed steel. the body of die made by steel and carbon steel
There are lots of things that are not made out of steel. I can't name all of them.
paper clips are usually made out of steel wire. Some are made out of plastic.
Steel companies make steel bars in circles
Gun safes are typically constructed from steel plating with fire-insulating material in them. The steel walls are usually quite thick, as much as an inch thick in some safes.
Older vaults were made of steel-reinforced concrete. The walls were also very thick, which made the vault very heavy. Nowadays vaults are made of lighter and thinner concrete with additives which give the concrete extreme strenght.
Steel
Fireproof safes are typically made of materials such as steel, concrete, and gypsum, which help insulate the contents from high temperatures and flames. They are designed to withstand intense heat and protect the items stored inside from fire damage. Some safes may also have additional layers of fire-resistant material such as ceramic fibers or insulation to provide extra protection.
One can get a used gun safe a Sportsman Steel Safes. They are also sold at West Coast Safes, Dean Safes and Sale Fire as well as Store More Guns and Heritage Safe.
No.
I actually found this more entetraining than James Joyce.
a car is made of aluminum and steel
That means that 'x' is made from steel of the said kind (steel grade).
First Alert sells custom made fireproof safes. Sentrysafeshop also sells custom made fireproof safes. You can also check with your local fire department on ideas of other places that sells fireproof safes.
Most cars are made of mild steel sheet. Others are made of aluminum or even stainless steel (DeLorean).
stainless steel. :)