Airgas, Inc., Radnor, PA, has acquired Smith Welding Supply &Equipment, Inc. and its affiliated company, Bayer Welding Supply, LLC. Six locations in the Detroit area have been integrated with Airgas Great Lakes, one of the regional companies within Airgas.
 
Smith and Bayer had combined annual sales of $16 million in calendar year 2006. Its central industrial gas fill plant in Ferndale, MI, supported branches in Wixom, Clinton, Detroit, and Auburn Hills, plus a location in Warren operating as Bayer Welding.
 
Airgas has also acquired Pacific Diazo Products Inc., Colton, CA, a distributor of aqua ammonia, anhydrous ammonia and related products and services. Pacific Diazo has been integrated into Airgas Specialty Products, a distributor of industrial ammonia products and services, process chemicals and refrigerants.
 
PDP had more than $9 million in sales in calendar year 2006. The acquired operations include a production and distribution facility in nearby Fontana, CA, and two distribution locations in southern California and Arizona.