BKF 19-19-3
BKF 19-19-3, U-01121
BKF 19-19-3/14.5/NPT/S717, U-23922
BKF 19-19-3/18.375/NPT, U-86019
BKF 19-19-3.5, U-48140
BKF 19-19-3/M18, U-49129
BKF 19-19-3/M20, U-27685
BKF 19-19-3/S717, U-34905