... ,AISI316,AISI316L. 3.DIN,SMS,ISO,IDF,AS,BS,BPE Standard. Welded Fixed Cleaning Ball(ISO9001:2008,CE ... glass polished Ra less than 0.8μm. Standard: DIN, SMS, ISO, IDF, RJT, AS, BS, BPE Connection: welded ... Argon arc welding machine and so on.Welded fixed cleaning ball(ISO9001:2008,CE,3A,TUV certified) ... glass polished Ra less than 0.8μm. Standard: DIN, SMS, ISO, IDF, RJT, AS, BS, BPE Connection: welded ...