... SMS,ISO,IDF,AS,BS,BPE Standard. Welded Fixed Cleaning Ball(ISO9001:2008,CE,3A,TUV certified) ... cap,nut,clamp,elbow,tee,cross,reducer,sight glass,manhole cover,cleaning ball,centrifugal pump,pipe holder ... Argon arc welding machine and so on.Welded fixed cleaning ball(ISO9001:2008,CE,3A,TUV certified) ... cap,nut,clamp,elbow,tee,cross,reducer,sight glass,manhole cover,cleaning ball,centrifugal pump,pipe holder ...