Peter Manickas, the third-generation owner of Attleboro-based Metal Tile Technology, sees great opportunity in speaking with other business owners, and not just for the networking one may expect. Manickas is one of 15 Rhode Island and Massachusetts business owners taking part in a group called the Entrepreneurial Exchange, an 18-month-old organization that prides itself on candor. “It’s not networking, although networking happens. It’s not coaching,” he said. “This is more intimate. ... We share our successes and failures and challenges.” Above, Manickas works with employee Angalissa Reyes.