Product Name:Trunnion Ball 
Surface Material:Tungsten Carbide 
Surface Hardness:70(HRC) 
Specifications:NPS 6"~48"(DN150~1200) 
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),Monel 
Coatings:Chrome Carbide,Stellite,Inconel,Special 
Support Type:Support Plate 
Drive:Pin Hole 
In addition,we will take part in the 8th Biennial Valve World Conference &Exhibition on 27-29 November 2012.Welcome to our booth(Hall03/H09).