33 52 00 Hydrocarbon Transmission and Distribution
33 52 19.13 Hydrocarbon Piping Stringing, Storing, and Stacking
33 52 13Liquid Hydrocarbon Piping33 52 16Gas Hydrocarbon Piping33 52 16.13Steel Natural Gas Piping33 52 16.23Medium Density Polyethylene Piping for Natural Gas33 52 16.26High Density Polyethylene Piping for Natural Gas33 52 19Hydrocarbon Piping Handling33 52 19.13Hydrocarbon Piping Stringing, Storing, and Stacking33 52 23Hydrocarbon Piping Welding33 52 23.13Liquid Hydrocarbon Piping Welding33 52 23.16Gas Hydrocarbon Piping Welding33 52 26Hydrocarbon Piping Pigging33 52 26.13Hydrocarbon Piping Pig Launchers33 52 26.16Hydrocarbon Piping Pig Receivers33 52 26.23Pigs for Hydrocarbon Piping