1PC GDJ-16 GDJ-25 GDJ-40 GDJ-50 Manual. High vacuum flapper valve KF angle valve. Material: 304 stainless steel + fluorine rubber + bellows shaft seal. Features: Leakage rate minus 10. Scope of application: semiconductor, solar energy, metallurgy, aviation, light industry and other.
Shaft seal: Bellows shaft seal.