Overview
Useful tips for “Paper Dolls“
Padlock
古代铜锁在中国已有五千年的历史，开锁时，将顶端开有相同槽孔的钥匙从右侧插入，向左侧推动钥匙锁芯从左边退出来，锁就打开了。
Padlocks enjoy a history of 5,000 years in China. A padlock will be opened by inserting the key into the padlock from the right and then pushing the key and cylinder to the left.
