Airgas, Inc. appointed Chuck Broadus as president of Airgas Specialty Products... IBC named Daniel P. Burnham president... Grainger 's board of directors appointed Michael J. Roberts to the board... Kennametal, Inc. promoted Ronald C. Keating to corporate vice president and president of the company's Metalworking Solutions Services Group...Fitz Chem Corp. named Scott Hendrickson vice president of sales and marketing...

Leviton Manufacturing appointed Tim Welch as technical sales specialist for Southern California...INDEECO appointed Rick Holmes director of sales and marketing, named Kevin Healy as commercial sales manager and marketing manager, and promoted Mark Cornwell to industrial sales manager...Stone Construction Equipment, Inc. appointed Tim Roberts of Kirkwood, Mo., as district manager...Colder Products Co. promoted Rick Garber to vice president of marketing...HBD/Thermoid, Inc. promoted Thomas E. Wilson to general manager of its industrial and aviation ducting operations located in Chanute, Kans...The Flexaust Co., Inc. hired Michael J. O'Brien as national sales manager.