... valve,diaphragm valve,safety valve,union parts,ferrule,end cap,nut,clamp,elbow,tee,cross,reducer,sight glass,manhole cover,cleaning ... equipment, Automatic Argon arc welding machine and so on.Welded fixed cleaning ball(ISO9001:2008,CE,3A,TUV certified)Working pressure ... valve,diaphragm valve,safety valve,union parts,ferrule,end cap,nut,clamp,elbow,tee,cross,reducer,sight glass,manhole cover,cleaning ...