... larger size can be customized 3.SS304,SS304L,SS316,SS316L Welded ReducerSurface treatment: mirror polished 320G,400G or matt polished ... 180G,240GStandard: DIN, SMS, 3A,ISO, IDF, RJT, AS, BS, BPESeal material: EPDM ... :2008,CE,TUVConnection type: weld/weld,clamp/clamp,male/male,weld/clamp,weld/male,clamp/maleDevice: YODSN combined CNC turning processing, CNC ...