Welcome to the website of DS Dichtungstechnik GmbH in Nottuln, Germany – your experts in canal construction, sealing systems and appurtenances. The DS group is your strong partner for todays and tomorrows projects. With ......Welcome to the website of DS Dichtungstechnik GmbH in Nottuln, Germany – your experts in canal construction, sealing systems and appurtenances. The DS group is your strong partner for todays and tomorrows projects. With constant research and development as well as up-to-date technologies, housed in an area of more than 10.000sqm, we provide utmost quality and advanced products.