... SMS,ISO,IDF,AS,BS,BPE Standard. Welded Fixed Cleaning Ball(ISO9001:2008,CE,3A,TUV certified ... Max. Working pressure is between 23Pa to 43Pa. ) Working temperature: -10 - 120 deg. C Specification: 1/2"-2 ... Argon arc welding machine and so on.Welded fixed cleaning ball(ISO9001:2008,CE,3A,TUV certified ... . Working pressure is between 23Pa to 43Pa. ) Working temperature: -10 - 120 deg. C Specification: 1/2"-2 ...