Stahlin Non-Metallic Enclosures (Belding, Mich.): Bill Dunn has been hired as national sales manager. He brings more than 20 years of experience to Stahlin and was most recently employed with Thomas and Betts Corp. as a regional specification manager. At T&B he also held positions as a sales representative and national telecom and OEM manager. Dunn earned his MBA in International Business from Cornerstone University and a BA in business from Adrian College.