■材质：锁蕊(铜&锌合金)安装座-不锈钢 ■Matorial： Zinc Alloy & copper,Body-stainless steel 304 ■转动钥匙、门挡内缩8m/m,以钥匙当成拉手柄将门开启 ■Rotate key,draw back 8m/m in cam,The key as handle and open the door