Below you find events and exhibitions about Twister™ and DCS Hybrid™ where HTC Cleaning Technology will participate. Common CLEAN - service & supply 2013 (5-29-2013 -- 5-30-2013) CLEAN - service & supply 2013 at Svenska Mässan in Gothenburg, Sweden. Read more. CMS Berlin (9-24-2013 -- 9-27-2013) CMS Berlin at Messe Berlin GmbH in Berlin, Germany. Read more. ISSA/INTERCLEAN Las Vegas 2013 (11-18-2013 -- 11-21-2013) ISSA/INTERCLEAN in Las Vegas Convention Center, Las Vegas, USA Read more.