Brunvoll signed a contract with Tersan Shipyard for the delivery of propulsion and maneuvering systems for two 150-m, 16,500-dwt stainless steel chemical product tankers to be owned Tune Chemical Tankers (TCT), which also is a part of Tersan Group.The vessels are designed by Norden Ship Design House, based in Istanbul, Turkey, and the contract includes an option for two more vessels.