BACK
 RIGOROUS LABORATORY TESTING EXETER's Shutter Systems are strong enough to stand up to an eight foot long 2" x 4" stud (9 lbs.), fired from a cannon at speeds up to 50 feet per second. |
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BACK
RIGOROUS LABORATORY TESTING EXETER's Shutter Systems are strong enough to stand up to an eight foot long 2" x 4" stud (9 lbs.), fired from a cannon at speeds up to 50 feet per second. |