... ball NPS 2-60(DN50-1500) trunnion ball of ball valve (1).Code: TB003 Product Name: Trunnion ball (2).NPS 2-60 ... , A182, F304,F316, F6A, F51, F53, A564 630(17-4PH), Monel(9).Coatings: ENP, Chrome Plating, Tungsten Carbide, Chrome Carbide, Stellite ... : Axle Sleeve(11).Drive: Rectangle socket trunnion ball of ball valve