Guntert & Zimmerman's productive and dependable concrete construction equipment make it the most respected name in the industry. For 75 years, G & Z has been committed to making contractors as productive as possible. G & Z's product offerings include concrete slipform pavers, dowel bar inserters DBI, material placers, placer spreaders, texture cure machines, and concrete plants. Whether your machine is new or has, Heavy Construction, Construction Equipment, Building Materials, Construction Machinery ...