circle seal单向阀 233a-6pp aluminum neoprene 3/4 in female npt 2 to 4 psig
circle seal单向阀 253a-4pp aluminum neoprene 1/2 in female npt 0.5 to 1 psig
circle seal单向阀 233a-4pp aluminum neoprene 1/2 in female npt 2 to 4 psig
circle seal单向阀 253a-2pp aluminum neoprene 1/4 in female npt 0.5 to 1 psig
circle seal单向阀 233a-2pp aluminum neoprene 1/4 in female npt 2 to 4 psig
circle seal单向阀 253a-1pp aluminum neoprene 1/8 in female npt 0.5 to 1 psig
circle seal单向阀 233a-1pp aluminum neoprene 1/8 in female npt 2 to 4 psig
circle seal单向阀 220a-6pp aluminum teflon? 3/4 in female npt up to 8 psig
circle seal单向阀 220a-4pp aluminum teflon? 1/2 in female npt up to 8 psig
circle seal单向阀 220a-2pp aluminum teflon? 1/4 in female npt up to 8 psig
