ISO9001:2008,CE,TUV certified. DN15-DN150,1/2"-6".AISI304,AISI304L,AISI316,AISI316L. DIN,SMS,ISO,IDF,AS,BS,BPE Standard. Stainless steel Washing Ball1.Material:SUS304,SUS316,SUS316L2.Connection:Threaded,Welded,Clamped3.Structure:Fixed,Rotary4.Polishing:Mirror polishing,Dull polishing5.Standard:SMS,DIN6.Application:washing ball is widely used for cleaning the tank.Such as dairy food,beverage,beer, ...