Gradus: 200/300/400/500/600/700/800/900 series/duplex materia immaculata chalybe: 201,202,202cu,204,409,409L,410,420,430,431,439,440,441,444, 301,302,303,304,304L,309,309s,316, 2205,2507,2906,330,660,630,631,17-4ph,17-7ph,S318039 904L.etc Standard: AISI, JIS, ASTM, AS, EN, GB Surface: 2B,2BA,BA,8K,Hairline,NO.4,SB , Caelatum.Trade Term: Telegraphic Translatio, T/T, Epistula Credit, L/C,