... .Standard:ANSI,DIN,JIS,EN,GB 5.Stainless sprial welded steel pipe TypeStainless sprial welded steel pipeSizeSeamless Pipe: 1/2”~48”, DN15~DN1200, OD21 ... ,TH flanges,pipe end cap,eccentric/concentric reducers ;sprial welded steel pipe (SSAW),seamless steel pipe (SMLS) ,and LSAW pipe! The sizes:ElbowDN15 ... our website , your inquiries will be reply promptly! stainless sprial welded steel pipe