Welcome to Dockweiler AG Dockweiler is a leading international manufacturer of stainless steel tube systems. The core business is the development of installation solutions for handling fluid and gaseous media in the semiconductor, pharmaceutical, analytical and fine chemistry industries. The spectrum spans tubes, fittings, ball valves, hoses and components to complex make-to-order designs. The company employs over 600 people worldwide and has subsidiaries in the Netherlands, Great Britain, Austria, Israel, Japan and Thailand as well as representations in over 40 countries worldwide.