Proco Products, Inc. supplies top-quality expansion joints and check valves for use in the steel industry. Customized materials and sizes are available to suit your specific need. The world-wide demand for steel products is on the rise, hence the need for additional steel manufacturing facilities.  Proco operates worldwide, and maintains one of the largest product inventories in North America. For more information on expansion joints and check valves from Proco Products, Inc., and to check pricing and availability, contact us today.  For an interactive PDF Applications Form, click here to download.