A business with branches in Guttenberg and Manchester is changing its name. Delaware County Economic Development Director Chad Schryock says it’ll reflect better the nature of the company’s business these days.Kann Fab is changing to Manchester Rotational Molding. Schrock says the company was established ten years ago.In 1994 they changed the kind of products at the company, from metal fabrication to molded plastic products. The company makes parts for trucks, industrial and agriculture machinery, and marine flotation drums.