GTS-Welco, a Praxair Joint Venture, 2300 Church St, Philadelphia, PA 19124, US

Airgas, an Air Liquide company, is a leading US supplier of industrial, medical and specialty gases, as well as hardgoods and related products; one of the largest US suppliers of safety products; and a leading US supplier of ammonia products and process chemicals. Dedicated to improving the performance of its more than 1 million customers, Airgas safely and reliably provides products, services and expertise through its more than 18,500 associates, over 1,400 locations, robust e-Business platform, and Airgas Total Access telesales channel. As an Air Liquide company, a world leader in gases, technology and services for Industry and Health, Airgas offers customers an unrivaled global footprint and industry-leading technology and innovations.