... plate4.coil ID:508mm or 610mm5.tensile strength:380-390 MPa 6.zinc coating:80-150 g/m2 7.percentage elonation(%):348.Yield ... point:352 MPa9.surface treatment:choromated,oiled or unoiled,minimum ... traffic tools.12.operate standard:JISG 332113.composition and function of products:cold rolled base metal,zine coating,corrosion lnhibitor, ...