Galvanized steel sheetStandardJIS, GB3312，GB/T1275thickness0.22-3.0mmwidth30-1250mmweight3-5tSurface treatmentpassivity, Oiling, The seal, Phosphate, Not handlesurface qualityMore advanced FBApplies only to light the whole surface structure, not corrupt, surface allowed to spend a slight indentation, fine zinc, zinc rhyolite and minor passivation spot; on the other hand, they should at least reach the FA level surfaceAdvanced FCApplies only to light the whole surface structure, the better side will not affect the paint surface appearance quality, and should be uniformly good coating; on the other hand, they should at least reach FB level surfaceSurface structure classCommon zinc flowerSmall zinc flowerNo zinc flowerfinishingCoating categoryPure zincZn Fe alloyAl Zn AlloyZinc aluminum alloyZinc nickel alloyCodeNMFSZZFAZZAZNsurfaceTypeChromate passivationChromate + oilingdeactivatorChromium free passivation + oilingPhosphatingPhosphating + oilingCodeCCOC5CO5PPOhandleTypeFingerprint resistant filmNon chromium fingerprint resistant filmSelf lubricantChromium free self run synovial membraneOilingNo deal withCodeAFAF5SLSL5OU