1.ISO9001 2.ASTM A792, JIS G3321 JIS G3317.. 3.Grade 33-grade 80.;SGLCC SGLCD.. 4.AZ40-150 1.Corrugated sheetCorrugated sheetCERTIFICATECorrugated sheet :ISO9001:2008STANDARDCorrugated sheet :ASTM A653, JIS G3302 SGCC/SGCH ,GB/T 2518, European standardGRADECorrugated sheet : SS grade 33-80; SGCC, SGCH, SGCD1-SGCD3, SGC340-SGC570, SGCC, DX51D.MODEL NO.Corrugated sheet :(0.12-1.5)*1250MM or ...