... . AC:820mm-950mm 3) Zinc coating:40gsm-120gsm 4) Length:1000-5800m Pre-Painted corrugated steel sheet 1) Standard:GB,JIS ... 2/2.6) Width of after corrugated :820mm-950mm7) Length:1000-5800mm.8) Packing:plastic paper and kraftpaper first ,then tie ... , such as warehouse, workshop, wide-span steel structure buildings. roof sheets