Putzmeister Shotcrete Technology continues to build upon Allentown’s rich history, experience and expertise. Since the introduction of the first Cement Gun at the New York Concrete Show in 1910, Putzmeister continues as the leader in design, engineering and manufacturing of innovative and effective gunning equipment for dry-process shotcrete in Refractory, Underground and Civil applications. Each machine offers proven performance and dependability on demanding job sites.