... of galvanized steel coil: JIS G3302, GB/T251B, EN10327, ASTMA653,7) Grade of galvanized steel coil: SGCC (DX51D+Z), SGCD (DX52D+Z),8) Surface finish of galvanized steel coil ... : Normal spangle, large spangle, small spangle, matt surface,9) Elongation: 16-33%,10 Applications: Galvanized tube/pipe, ceiling ...