
High Security SUS304 Material Mortise Door Lock / Top Rated Euro Classroom Mortise Cylinder Door Lock. High Security Material: Constructed from SUS304 stainless steel or galvanized steel for superior durability. Fire Rated Certification: Passed 1.5h fire 3C modality test according to China GB12955-2008 standard. Durable Deadbolt: Deadbolt durability tested for 50,000 cycles with anti-theft standard A. Adjustable Design: Lock case allows easy adjustment for left and right door configurations. Wide Compatibility: Fits door thickness 35-65mm with lock cylinder length 50-130mm. Multi-Certification: Complies with EN12209, EN1935, EN1527, ANSI A156.13, and DIN 18251. Professional Manufacturing: Produced by LOCKVEL with nearly 20 years of experience in door hardware. Customizable Finish: Available finishes include SS, PSS, BNP, AB, AC, and other options.