304 material No.4 stainless steel sheet surface finish: No.4/320# thickness:0.4-3.0mm width:100-1500mm length:500-5000mm 304 material ... or BA finish 3) With protective filmSpecifications:1) Thickness scale: 0.4 - 3.0 mm2) Normal Width: a) 1,000mm b) 1,219mm ... ) Cater-corner error: <0.5mm6) Product materials: SUS304, SUS316, SUS430, SUS439, etc.7) composition:C, Si, Mn, P, S, Cr,Ni, N8 ...