Trunnion Ball (Code TB2121)Specification:NPS 6?56Pressure Rating:LB150?2500Base material:ASTM A105, A350 LF2, A182 F304, A182 F316, A182 F6A, A182 F51, A182 F53, A564 630(17-4PH), Monel, etcCoatings: ENP, Chrome Plating, Tungsten Carbide, Chrome Carbide, Stellit, Inconel, etcSupport Type: Support...