Materials and Construction
Super conductors are those substances, which

Offer no resistance to current flow
Conduct electricity at high temperature
Conduct electricity at low temperature
Offer high resistance to current flow

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Materials and Construction
Lead pipe is

Usually joined by burning (e.g. by melting to adjacent pieces with a torch)
Especially resistant to solutions containing H₂SO₄
Having very low elastic limit resulting in permanent deformation from either mechanical or thermal strain
All of these

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