PRODUCT NAME: Stem ball Specification: NPS 1"~ 4" ( DN25~100 ) Pressure Rating: Class 150~2500 ( PN16~420 ) Base Material: ASTM A105,A350 LF2,A 182 F 304,A 182 F 316,A 182 F 6A ,A 182 F 51,A 182 F 53,A564 630(17-4PH),Monel Coatings: ENP \ Chrome Plating \ Tungsten Carbide \ Chrome Carbide \ Stellite \ Inconel \ Special Support Type: Axle Sleeve Drive: Straight Slot |