... rolling,good corrosion resistance Grade 550 steel: StandardASTM, DIN, GB, JISGradedx51dThickness0.14mm-1.5mmBase materialGI,or Galvalume SteelPatterncan be customized ... according to customers requirementspackagestandard export packageapplicationssuitable for indoor or outdoor decoration,color lasting for at least 10 years for ... all over the globe cooperate with us. ASTM, DIN, GB, JIS Grade 550 steel