China Bangyu Industrial Zinc Magnesium Aluminum Ladder Electrical Cable Tray & Trunking for Construction and Cable Laying PRODUCT PARAMETERS Product Name Zinc Magnesium Aluminum Ladder Cable Tray Materials Zinc Magnesium Aluminum 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