Metals–Iron–Steel Requests

I am looking for a manufacturer capable of producing aluminum coils painted in different colors. Coils of approximately 3,500 pounds 49'' wide. I am from Quebec a province inside Canada where we mainly speak french. But i do speak english if we required. We are looking to find a manufacturers of aluminium coil of 3,500 pounds 49'' wide different colors. Also looking for differents others items. We actually buy from China, but we would like to find another place elsewhere around the world. I heard Turkey is very good with this, but i don't know anyone over there. Thank you I can provide alot more details like the exacts alloy we need, how we want the paint on it the annual usage. We are a manufacturers of enclosed cargo trailers. Here an idea of what we built: