Trail blazing fabricator Bison Frames has just launched Bison Aluminium with the WarmCore Folding Sliding Door. Mark Tetley, Director of Bison, says, “We’ve been looking for the right product to manufacture and step into the aluminium market place for a couple of years now and our patience has been rewarded. WarmCore is a truly innovative system that has raised the bar so high that it will set the standard for many years to come. WarmCore definitely signals the rebirth of aluminium doors and windows and we are proud to say that we now manufacture this product”. Bison is a company.