Hi guys,
U shape as in sink pipe trap. I think some of them are copper, I started to sand them looks kind of pink, (all non magnetic) some are very light weightiness. LOL
Most of the long length pipes are rusted. So I guess steel, iron. I did find a tall pipe jack thing, maybe to jack up the house ? Rusted, Very Very Heavy !
I think they have been dumping here for years. I hope nothing bad Is dumped here.



Thanks Again for all the help.