CONTACT INFORMATION / DIRECTIONS
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  Keystone Industries Window & Screen Systems, Inc.  
  105 Mahoning Ave.  
  New Castle, PA 16102  
  Phone: 724-658-0500  
  Fax: 724-658-0589  
  Hours of Operation: Mon. - Fri., 8:00 am - 4:30 pm EST  
 
  customerservice@keystone-industries.com