One Piece Body Ball Valve Structure Type: Rising Stem, Non-rising Stem, Single Disc, Double ... Disc 9)Operated Way: Handwheel, G One Piece Body Ball ValveDesign & manufacture: API 6D, API 608, ASME B16.34, ANSI ... or bore: NPS11/2~NPS6, DN40~DN150 One Piece Body Ball Valve