1.Zinc Coating:20-150gm2 2. ... tolerance+/-0.02mmwidthness tolerance+/-0.02mmSurface finished20-150g/m2 Zinc-coating Steel gradesSGCC,QGCC, GR.A, GR. ... .Application:Galvanized sheet products mainly used in construction, light industry, automobile, agriculture, animal husbandry, fishery and ... architecture roof boarding, roof grille, etc.(2) Light industries use galvanized sheet to make home appliances ...