... zero spangle, regular spangle.,small spangle,Big spangle. 4). Quality: No Joint, No Bends, no spots, no roller ... 10142, ASTM A 653.MaterialSGCC, SGCD1, SGCD2,DX51D+Z, DX52D+Z, DX53D+D,etcSurfaceChromated, unoiled/oiled, minimum or ... other standard as the customers' requirement Surface Treatment of Hot-dipped Galvanized Steel coil : Surface TreatmentFeaturesChemical passivating treatmentminimize the ...