Product Name:Stem BallSurface Material:Tungsten CarbideSurface Hardness:70(HRC)Specifications:NPS 1"~4"(DN25~100)Pressure Rating:Class 150~2500(PN16~420)Base Material:ASTM A105,A350 LF2,A182 F304,A182 F316,A182 F6A,A182 F51,A182 F53,A564 630(17-4PH)...
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valve ball, valve seat, valve fitting, valve parts...
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