◆ The main structural features
 1, reasonable structure, reliable sealing, excellent performance, attractive appearance; 
 2, sealing surface is welded Co-based cemented carbide, wear, corrosion, good anti-friction properties, long life; 
 3, valve Rod quenching and surface nitriding, with good corrosion and friction properties; 
 4, double seal, more reliable performance; 
 5, stem lift position indication, more intuitive; 
 6,   parts material, flange and butt welding Size according to the actual   conditions or user requirements reasonable matching, to meet the needs   of various projects
 

◆ technical specifications

 ◆ product performance specifications

 ◆ The main components of the material