Brand :  Huacheng 
Grade:  SA213 T2, T9, T11, T12, T22, T91etc.
Standard :  ASTM A213
Size Range: O.D.:10-335mm W.T.:2-25mm
Surface:

Brand :  Huachuang 
Grade:  S235J2H
Standard :  EN10210
Size Range:  W.H.:1000 - 500mm W.T.:5-40mm
Surface: anti rust oil, bright a