● 适用于房门、大门、双开大门38mm-55mm厚度的门上安装。● 严格配备7珠锁芯，超国家防盗标准，最适合与工程用锁。● 设计合理，性能稳定，手感特好，多款式选择。1.Thelockisappliedtothicknessofgate,double-opendoor,entrancerangedfrom38mmto55mm.2.Cylinderwithsevenpinsdesignwhichiscorrespondtonationalsecuritystandardismuchsuitableformakinginstructionkey.3.Manyfinishesareavailable.