Röhrenwerk Kupferdreh Carl Hamm GmbH is a German family-owned manufacturer of high-quality piping systems with nearly 100 years of engineering experience. Headquartered in Essen, Germany, the company develops, manufactures, welds, and supplies customized piping solutions for the water, energy, mining, tunnel construction, and industrial sectors. With modern production facilities, certified welding expertise, comprehensive quality control, and in-house engineering capabilities, Carl Hamm delivers reliable, innovative, and customer-specific solutions that meet the highest international quality standards.