Discover PAM Building, a company committed to sustainability and product excellence. We are proud to launch our new brand identity PAM Building which reflects our business, our vision and our objectives with its new revitalized image. For 150 years, we have been designing, manufacturing and supplying high-quality drainage systems for residential and commercial buildings and engineering structures. We work exclusively with cast iron, a noble and durable material, of which we are a specialist and leader. Cast Iron Drainage, Soil and Rainwater Pipes and Fittings.