1.material grade:AISI 201,Y201Cu,202 AISI 303, 304, 304L,310,310S,316,316L,321 stainless ... unequal sizes 2 anglesstainless steel angle bar1.material grade:AISI 201,Y201Cu,202 AISI 303, 304, 304L,310,310S,316,316L, ... 321 AISI 410,420,430,430F,431,4162.standard:ASTM A276, ... G 4311,JIS G 43183. production procedure: raw elements(C,Fe,Ni,Mn,Cr,Cu etc.,)--smelted ingots by AOD ...