Galvanised Steel Coils 1) Product Name: Galvanized Steel Coil2) Quality Standard & Grade: GB/T251B/JIS G3302,SGCC( ... : widely used for roofs, outer walls, ovens, explosive-proof steel, electrically controlled.Hebei Haodong International Trade Co., Ltd is a ... comprehensive trading company, which is engaged in steel process, trading, storage, and transportation. Our company is located ...