... strict tolerance, high quality, most reasonable price stainless steel flat bar 1.Stainless steel flat bar's material: 201,202,301,304 ... raw elements(C,Fe,Ni,Mn,Cr,Cu etc.,)--smelted ingots by AOD finery--hot rolled into black surface--pickling into ... by automatically machine--cutting into pieces--checking quality--package3.Stainless steel flat bar's surface:black,pickling,polish, mirror polishing,satin ...