circle seal单向阀 220s-2pp carbon steel teflon? 1/4 in female npt up to 8 psig
circle seal单向阀 220s-1pp carbon steel teflon? 1/8 in female npt up to 8 psig
circle seal单向阀 259s-8pp-0.15 carbon steel buna n 1 in female npt 0.15 psig
circle seal单向阀 259s-6pp-0.15 carbon steel buna n 3/4 in female npt 0.15 psig
circle seal单向阀 259s-4pp-0.15 carbon steel buna n 1/2 in female npt 0.15 psig
circle seal单向阀 259s-12pp-0.15 carbon steel buna n 1 1/2 in female npt 0.15 psig
circle seal单向阀 249s-4pp-3 carbon steel buna n 1/2 in female npt 3 psig
circle seal单向阀 259s-16pp carbon steel buna n 2 in female npt 0.5 to 1 psig
circle seal单向阀 249s-16pp carbon steel buna n 2 in female npt 2 to 4 psig
circle seal单向阀 259s-12pp carbon steel buna n 1 1/2 in female npt 0.5 to 1 psig
