Hot dip galvanized coil standard ASTM,GB,JIS. All sizes are available. Hot dip galvanized coil standard ASTM,GB,JIS.Material:SGCC, DX51D+Z,DC51D+Z, DC01-06;Five catelogues:1,hot rolled steel coils;2,cold rolled steel coils;3,galvanized coils;4,stainless hot rolled steel coils;5,stainless cold rolled steel coils. Hot dip galvanized coilsteel