hot dipped galvanized corrugated sheets full hard ,regular spangle grade : JISG3302 ,SGCC ,SGCH 1) hot dipped galvanized corrugated sheets2) full hard ,regular spangle 3) grade : JISG3302 ,SGCC ,SGCH4) ... /2730mm/3000mm5) with package which is suitable for ocean transportation . hot dipped galvanized corrugated steel sheets