lead
Yes, copper pipes are used extensively in plumbing.
Plumbing plugs are used for leaking pipes and while the pipe needs to be repaired. A plumbing plug will make the job much faster and easy.
Hydraulics
what is a reseating tool
One use is as insulating tape. Another is as jointing tape in plumbing.
lead
Mercury.
Manganese is a metal. It is also used as an alloying element in steel.
Uranium or plutonium
UraniumIronLeadCadmiumetc.
iron
metallic element used as an alloy in wheels for classic cars
yttrium
iron
iron
Mercury.
the answer is zinc