This story was originally published on Packaging Dive. To receive daily news and insights, subscribe to our free daily Packaging Dive newsletter. TriMas aims to refine its focus as a packaging company, the corporation signaled Tuesday as it announced the divestiture of its aerospace division. The Michigan-based company will maintain its packaging business — the company’s largest division — and its specialty products segment, which manufactures steel cylinders. TriMas reached an agreement to sell its aerosp ...