... 3.DIN,SMS,ISO,IDF,AS,BS,BPE Standard. Welded Fixed Cleaning Ball(ISO9001:2008,CE,3A,TUV certified)Working pressure ... senior engineers.Device: YODSN combined CNC turning processing, CNC milling center, plastic injection, Die casting, press stamp, we introduced plenty ... equipment, Automatic Argon arc welding machine and so on.Welded fixed cleaning ball(ISO9001:2008,CE,3A,TUV certified)Working pressure ...