Kosin International is agent Fire Acoustic Solution Pte - Singapore . We are Join Venture . We product Intumescent Seal for made fire door . We has years of experience in the design, development and manufacturing of passive fire protection products which we branded as SEALZ. We offer a comprehensive range of SEALZ intumescent, acoustic and draught seals with proven performance and design efficiency. SEALZ intumescent seals are independently tested by Warrington Fire Research Centre, CSIRO, Branz and other International Testing Institute. SEALZ intumescent seals comply with the requirement of BS 476 Part 22-1987 and Part 31.1 etc. Currently SEALZ products are being exported to Europe, Middle East, Asia and Australia where SEALZ has become a reliable name.