circle seal单向阀 249s-10pp carbon steel buna n 1 1/4 in female npt 2 to 4 psig
circle seal单向阀 259s-8pp carbon steel buna n 1 in female npt 0.5 to 1 psig
circle seal单向阀 249s-8pp carbon steel buna n 1 in female npt 2 to 4 psig
circle seal单向阀 259s-6pp carbon steel buna n 3/4 in female npt 0.5 to 1 psig
circle seal单向阀 249s-6pp carbon steel buna n 3/4 in female npt 2 to 4 psig
circle seal单向阀 259s-4pp carbon steel buna n 1/2 in female npt 0.5 to 1 psig
circle seal单向阀 249s-4pp carbon steel buna n 1/2 in female npt 2 to 4 psig
circle seal单向阀 259s-3pp carbon steel buna n 3/8 in female npt 0.5 to 1 psig
circle seal单向阀 249s-3pp carbon steel buna n 3/8 in female npt 2 to 4 psig
circle seal单向阀 259s-2pp carbon steel buna n 1/4 in female npt 0.5 to 1 psig
