To buy aluminium castings

Dear Sirs,
 
My name is Carlos Tavares. I’m working in a company dedicated to LED lightning.
Actually we are for suppliers in Shenzhen area able to supply all this alu castings.
 
Can you provide a list of potential suppliers?
 
In house, capabilities of extrusion and injection, able to supply parts overseas.
Cumprimentos/Best Regards
Carlos Tavares
TellUS