Product Name: Floating Valve ball NPS 2''~12''(DN50~300) Pressure Rating: Class 150~600 (PN16~100) Base Material: ASTM A105,A350 LF2,A182 F304,A182 F316,A182 F6A,A182 F51,A182 F53, A564 630(17-4PH) Monel Coatings: ENP, Chrome Plating, Tungsten Carbide, Chrome Carbide, Stellite, Inconel, Special.