Galvanized steel delivered 2 days have been tarnished, galvalum plafon color irregularities, were expanding holes, color coating improve quality, faulty goods (marginal relaxant, down colors, flake the paint).
Thick galvanized steel of 02 days has been discolored, cold sheet plafon uneven color, were patchy, improving quality color coating line defective (relaxing border, down to color, paint peeling).