Chinese Factory Affordable Industrial Aluminum Alloy square Trunking Electrical Trays Cable Tray Cable Duct with CE PRODUCT PARAMETERS Product Name Aluminum Alloy Square Trunking Materials Aluminum Alloy Specification Thickness:1.0 mm-2.2 mm Height: 25 mm-200 mm (Light, Medium, Heavy Duty) Width:50 mm-1000 mm Length: 2-6M (can be produced according to appointed length) Finished: Brush Finishing,Mirror Polishing,Sandblasting,Passivation,Coating Surface Finish Brush Finishing