For over 50 years, Midland Manufacturing has been the leading manufacturer of pressure relief valves, loading/unloading angle valves.

• See also:
• Masterformat 2004
• 10 28 16 - Bath Accessories
• 10 28 19 - Tub and Shower Doors
• 13 20 00 - SPECIAL PURPOSE ROOMS
• 13 21 13 - Clean Rooms
• 13 21 16 - Hyperbaric Rooms
• 13 21 23 - Insulated Rooms
• 13 21 26 - Cold Storage Rooms
• 13 21 48 - Sound-Conditioned Rooms
• 13 22 00 - Office Shelters and Booths
• 13 23 00 - Planetariums
• 13 24 16 - Saunas
• 13 24 26 - Steam Baths
• 13 24 66 - Athletic Rooms
• 13 26 00 - Fabricated Rooms
• 13 27 00 - Vaults
• Masterformat 1995
• 10820 - Bath Accessories
• 13030 - Special Purpose Rooms