circle seal单向阀 249s-2pp carbon steel buna n 1/4 in female npt 2 to 4 psig
circle seal单向阀 259s-1pp carbon steel buna n 1/8 in female npt 0.5 to 1 psig
circle seal单向阀 249s-1pp carbon steel buna n 1/8 in female npt 2 to 4 psig
circle seal单向阀 232s-8pp-0.5 carbon steel viton? 1 in female npt 0.5 psig
circle seal单向阀 232s-4pp-0.15 carbon steel viton? 1/2 in female npt 0.15 psig
circle seal单向阀 232s-16pp carbon steel viton? 2 in female npt 0.5 to 1 psig
circle seal单向阀 232s-12pp carbon steel viton? 1 1/2 in female npt 0.5 to 1 psig
circle seal单向阀 232s-10pp carbon steel viton? 1 1/4 in female npt 0.5 to 1 psig
circle seal单向阀 232s-8pp carbon steel viton? 1 in female npt 0.5 to 1 psig
circle seal单向阀 232s-6pp carbon steel viton? 3/4 in female npt 0.5 to 1 psig
