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