... 's requirements3.Surface: black &pickled&bright&hair line4.Grade: 200 series& 300 series& 400 series5.Standard:ASTM A276, AISI,GB/T 1220, ... : AISI,SUS,GB,JIS,ASTM,DIN etc 3. Grade: 200,300,400series, 201,202,301,304,304L,310S,316,316L ... customer's requirementsSurfaceBright,Polished,Turn smooth(Peeled),Brush,Mill,PickledGrade200 series& 300 series& 400 seriesStandardASTM A276, AISI,GB/T 1220, JIS ...