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carbon steel and some of it has to be heat treated there is only a select few of tower crane manufactures that has the stamps to build them
the kind that is alive
yes, I have lived in Calgary for all of my life and I love it here. also lots of the people in Calgary are kind. =)
yes, I have lived in Calgary for all of my life and I love it here. also lots of the people in Calgary are kind. =)
shell structure
It all depends on the kind of bridge you are building
Iron was used, not an alloy. The major structural material is "puddled iron" which is low-carbon wrought iron rather than steel. The number of iron bars used in the Eiffel Tower is 18,038.
It is a Lattice tower.
Not the kind that breathe through gills, unless they are in an aquarium.
pigeons
yes there is! its on the first floor kind of by the south entrance
It depends on what kind of material you want to use, as well as how big is your backyard. Many factors can affect the expenses for this project.