stainless steel classroom lock body

Standards and test: lock body to meet the performance standard in Europe EN12209 lock body size to meet DIN18251 Lock body has successfully passed the following tests: tongue circular ramp test:200,000 times anti-corrosion test:96 hours salt spray test fire performance test:a 90-minute national standard fire test Size: installation door sideline:55mm,60mm,65mm cylinder finish up center to center distance:72mm Material: stainless steel Finish: drawing, mirror light,gold light,gold,green bronze,red bronze Fittings: block piece,button box,lock and lock-chip mounting screws