Steel Coils Specs Thickness from 27 up to 22 as per request Base Metal = JIS G 3302 SG CC Z12/ (ASTM A755) Zinc Coating = From 100 g/m2 up to 275 g/m2 as per request. Paint Top = 25-micron regular modified polyester + 5 Mic.universal primer on side with standard Ral.9002 or as request. Both Sides Steel Gauge = From 27 up to 22 as per request with PE protecting film Types