... ,400G), semi-polish, matt finishing, sandblast or picklingConnection: welded , threaded , clamped and union type. We also supply butterfly valve,ball ... ,safety valve,union parts,ferrule,end cap,nut,clamp,elbow,tee,cross,reducer,sight glass,manhole cover,cleaning ball, ... manufactory from China,specializes in producing kinds of sanitary valves,pipe fittings as well as OEM services over 15 years. Occupies ...