Specification of Galvanized Steel Coil:
Standard  JIS G3302 1998, ASTM A653M/A924M 2004
Grade  SGHC, SGCC, DX51D, etc.
Thickness  0.16mm-6.0mm,
Width  750mm-1829mm,
Coil ID  508/610mm
Coil weight  2-20ton
Coating Weight  Z40 to Z275g/㎡, double side
Spangle  non-spangle,regular/ small / big spangle
Surface Treatment of Hot Dip Galvanized Steel Coil:

Surface Treatment Features
Chemical passivating Minimize the chance of white rust forming during transit and storage
Maintain the bright, shiny appearance for a long time
Oils Minimize the tendency for storage and transit stain
Passivating +Oil Provide the protection from storage and transit stain by special chemicals callled corrosion inhibitors
Spangle of Hot Dip Galvanized Steel Coil:

Surface Finish Pattern Application
Normal Spangle Standard spangles with follower General uses
Small Spangle Minimized spangles than regular General painting
Zero Spangle Extremely minimized spangles Special painting