... Material: WCB.304,306,304L,306L Full Bore Ball Valve 2 pieces DescriptionMaterials WCB.304,306,304L,306LNominal Size1/4 ... precision casting process, well appointed casting equipments, high-precision CNC machines and machining center. On the testing aspect, we have ... field. Our products mainly include all kinds of ball valve, globe valve, gate valve, strainer, quick coupling, and a variety of impeller, ...