43 42 00 Pressurized Tanks and Vessels
43 42 33 Stainless Steel Pressure Tanks
43 42 11 Cast Iron Pressure Tanks 43 42 13 Ductile Iron Pressure Tanks 43 42 21 Welded Steel Pressure Tanks 43 42 23 Glass-lined Steel Pressure Tanks 43 42 26 Welded Steel Gas Storage Sphere 43 42 33 Stainless Steel Pressure Tanks 43 42 36 Aluminum Pressure Tanks 43 42 41 Metallic Specialty Pressure Tanks 43 42 53 Fiberglass Reinforced Plastic Pressure Tanks 43 42 83 Non-metallic Specialty Pressure Tanks