Material:stainless steel Size:1/2''-24'' TUV and ISO9001 Stainless steel flange1.Grade:304L,316L,310,321,347,904L,Super Duplex2.DIN 2527/2573(PN6 to PN 100)3.Size:1/2'' to 240''(DN 15 to DN 600)4.Material:carbon steel,stainless steel and alloy steel.5.Standard:ANSI,DIN,EN1092-1,NFE,AS,JIS and customers' drawings for special use .6.Types:WN,SO,BL,Plate,thread,Socket and etc.7.Process:free foring, ...