how to find recyclers or warehouses who sell escrap

Hi every,
I am new to here and have learn some from the forum.Here could anyone do me a favour to advise how to find recyclers or warehouses who sell escrap?Or if anyone operate warehouse or could recomment some to me.Thank you so much.

Ray there is alot of foot work but call them up and ask...sometimes you have to stand on there lot to get the boss to come out if they don't want to pick up there phone.