... ,irrigation,aquaculture,construction,gardenpool,industrial. We have 58 plastic moulding machines to produce, can produce 2" a ... we produce different grade quality of pvc ball valve for diferent markets, like North American, Eurpean market ... ANSI DIN BS Plastic Ball Valve,Compact Ball valve, Octagonal ball valve,Gate valve,Foot valve,Union valve,Check valve,Butterfly valve,Diaphragm valve--etc.3)They ...