1.aluminum extrusion exhibition profile 2.welding services provided welding aluminium proifle 1. Surface treatment:Oxidized, Electrophoretic, Mill finished, Anodizing, ... . temper:T4/T5/T6, etc4. colors:White, black, bronze, blue, green, or according to your requirements5. main products:Aluminum window &door ... ,maybe wooden box .According to customer's request . aluminum profile welding