... Testing pressure of products: 16 bars 4. Surface finish: Polishing, oiled (rust-resistant), zinc, nickel, chrome plating, hot galvanized, powder coating and painting ... center Etc quake press molding machine, turning molding machine, and hanging shot blast cabinet 6. Testing equipment: Direct-reading ... inspection report. 9. Usage: it is mainly used in water pump as a part of presure reducing valve. 10. ...