... rolled/cold rolled6) Surface:No.1,2B,BA.HL.NO.4. Surface finishCharacteristics and application NO.2BThe surface brightness and flatness of ... no2B is better than no2D. then through a special surface treatment to improve its mechanical properties,No2B could nearly satisfy ... mainly used as buildings ornaments elevators,door of building, frontal plate etc.BACold rolled, bright annealed and skin-passed, the ...