ISO Corrugated steel sheet: 1). spangle,bright 2).Thick 20-32gauge(0.2 - 0.8mm) 3).promotion $1.8/m 4).Surface:galvanized,co ISO Corrugated steel sheet:1). spangle,bright2).Thick 20-32gauge(0.2 - 0.8mm)3).USD1.4 -4.9/m4).Surface:galvanized,colo If you have any requirement, pls feel free to contact with us..