With a unique set of bar-Hyacinth which greatly increased the twisting force to unlock, can prevent the shake of the chain of soft keys, and also constantly shedding Rafah.

• 世纪西科防盗锁,独有的葫芦型套杆,大大增加了开锁的扭拧力,防止链节软钥匙拧断,拉断脱落。