GALVANISED STEEL SHEET JIS G3313 SECC THICKNESS (mm) PHOSPHATE & ANTI-FINGER PRINT E12 0.7 4' X 8' 0.8 4' X 8' 0.9 4' X 8' 1 4' X 8' 1.2 4' X 8' 1.5 4' X 8' 2 4' X 8'