circle seal单向阀 h262b-2pp brass ethylene propylene 1/4 in female npt 2 to 4 psig
circle seal单向阀 h224b-6pp brass silicone 3/4 in female npt 0.5 to 1 psig
circle seal单向阀 h224b-4pp brass silicone 1/2 in female npt 0.5 to 1 psig
circle seal单向阀 h224b-2pp brass silicone 1/4 in female npt 0.5 to 1 psig
circle seal单向阀 h253b-6pp brass neoprene 3/4 in female npt 0.5 to 1 psig
circle seal单向阀 h233b-6pp brass neoprene 3/4 in female npt 2 to 4 psig
circle seal单向阀 h253b-4pp brass neoprene 1/2 in female npt 0.5 to 1 psig
circle seal单向阀 h233b-4pp brass neoprene 1/2 in female npt 2 to 4 psig
circle seal单向阀 h253b-2pp brass neoprene 1/4 in female npt 0.5 to 1 psig
circle seal单向阀 h233b-2pp brass neoprene 1/4 in female npt 2 to 4 psig
