Special Ball for Ball Valve Size: NPS 1-24 (DN25-600) Pressure Rating: Class 150~300(PN16~100) Base Material: ASTM A105, A350 LF2, A182 F304, A182 F316, A182 F6A, A182 F51, A182 F53, A182 F55, A564 630(17-4PH), Monel, Inconel. Coatings: ENP, Chrome Plating, Tungsten Carbide, Chrome Carbide, Stellite, Inconel, Special. Support Type: Stem Drive: Spine Hole Roundness: 0.01-0.02 Roughness: Ra0.2-Ra0.4 Coaxiality: 0.05 Packaging Detail: wooden cases; pallet; containers