Numbers and Titles



40 21 23.13No. 1 Fuel-Oil Process Piping
40 21 23.23No. 2 Fuel-Oil Process Piping
40 21 23.26Kerosene Process Piping
40 21 23.29Tar Fuels Process Piping
40 21 23.43No. 4 Fuel-Oil Process Piping
40 21 23.53No. 5 Fuel-Oil Process Piping
40 21 23.63No. 6 Fuel-Oil Process Piping