Perforated type cable tray Types : 1) perforated straight channel 2) perforated inward bend 3) perforated outward bend 4) perforated with reinforcement. Strength - light, medium & heavy duty Raw material - mild steel is 1079, pre-galvanized sheet, stainless steel & aluminum Width - 50 mm to 1200 mm Height - 10 mm to 100 mm Thickness - 1.2 mm to 3 mm Length - 2500 mm / 3000 mm & 2444 mm (for Aluminum) Finish - mild steel: self finish, pre-galvanizing (mill finish), hot dip galvanizing as per I.S. 2629 / 4759, bs 729, astm 123, painted (red oxide, painted & powder coated) Finish - stainless steel: self finish & mirror finish Finish aluminum: self finish & anodized finish. Loose and safe packing.