United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry

• Information for steam fitters and all who are concerned in the differences between the United Association of Plumbers and Fitters and the so-called National Association of Steam Fitters
• Pneumatic controls for United Association journeymen and apprentices
• Pneumatic controls manual for United Association journeymen and apprentices
• Related mathematics for United Association Journeymen & Apprenctices