Prepainted GALVALUME STEEL COILSIZE:Steel Grade: Dx51d+Z, SGCCSurface Treatment: Galvanized or GalvalumeEdge: Slit edgeZinc coating: 60-275G/M2Paint thickness: Top 15-25um +Back 5-10umPaint:Epoxy Polyester, silicon modified polyesters, polyvinylidene fluoride, high-durability