Many buildings use mortise locks to ensure safety. From this we can know that when choosing a mortise lock, safety is the most important consideration. The mortise locks can be used in commercial and residential applications and provide strong security.The American mortise lock is the best choice fo

American National Standard Institute (ANSI) ANSI 156.13 ItemANSI 156.13 Cycle-testGrade 1-1,000,000Grade 2-800,000Grade 3-800,000Fire TestPass UL 10 C 3 hours fire testAnti-corrosionSalt Spray Test 200 hours 1.SCOPE 1.1 This Standard establishes performance requirements for Mortise Locks and