... 3.DIN,SMS,ISO,IDF,AS,BS,BPE Standard. Welded Fixed Cleaning Ball(ISO9001:2008,CE,3A,TUV ... less than 0.8μm. Standard: DIN, SMS, ISO, IDF, RJT, AS, BS, BPE Connection: welded , threaded , clamped, ... Automatic Argon arc welding machine and so on.Welded fixed cleaning ball(ISO9001:2008,CE,3A,TUV ... less than 0.8μm. Standard: DIN, SMS, ISO, IDF, RJT, AS, BS, BPE Connection: welded , threaded , clamped, ...