Nigeria Requests

I want to buy aluminium pipes and and accessories. (50mm pipe 1.5mm thickness ) (40mm struct pipe 1.8mm thickness ) ( 16mm pipe 1.5mm thickness )

I am a technician in Nigeria my work is fixing of aluminium handrail, I buy pipes and accessories from importers in my country but it's quite expensive for me my customers are complaining I really need help from you people in Turkey.i will appreciate.