Galvalume Steel Coil is also called Aluminum-Zinc Alloy Coated Steel coil, Zinc-alume steel coil, aluminized zinc steel coil (alu-zinc steel coil), SGLC, The galvalume metal is composed of 55% aluminium, 43.4% zinc and 1.6% silicon solidified at 600 ℃. Its whole structure consists of aluminium-iron-silicon-zinc, forming a compact quaternary crystal alloy. The surface of the galvalume steel coil/ sheet is characterized by smooth, flat and gorgeous stars, and its base color is silver white. Product Name Galvalume Steel Coil Grade ASTM A792 Alu-Zinc Coating AZ30-AZ180 Thickness 0.13-0.7mm Width 600-1250mm Coil ID 508/610mm Coil Weight 3-8Tons Surface Treatment…