Steel plate standard: thickness from 0.8mm to 400mm, width from 1000mm to 3000mm, raw material: 10 Q235B、Q235C、16Mn、Q345B、Q345C、Q345E、Q245R、Q345R、20 45 40Mn、50Mn、65Mn、Mn13、40Cr、50Cr、35CrMo、42CrMo、12Cr1MoV、15CrMo、NM360、NM400、NM450、NM500、L245、L360、X50、X60、X65、X70、X80、SPCC、DC01、DC02、DC04、ST12 Wait.Weathering steel is a type of steel that improves its resistance to atmospheric corrosion by adding a few alloying elements such as Cu, P, Cr, Ni, etc. to form a maintenance layer on the metal surface. There are two types of weather resistant structural steel: atmospheric high weather resistant steel and welded weather resistant steel.