... ,G450,G550,galvanized steel strip,G550 galvanized steel Z275 Hot dipped galvanized steel strip High Tensile Galvanized Steel-G550/G450/G350Cold rolled carbon steel as raw materials, continuous hot galvanizing.Thickness ... industry, welding pipe, building material, construction material etc.Annual production: 200,000 MT/yearGENERAL STEEL GRADE SPECIFICATIONChemistry Composition % Steel gradeC%Mn%Si ...