When you live in a new house and the door lock is broken, choose a new door lock has been a big problem in many people. Of course, many people think that we should choose the mating door lock to the door. But have you thought about the safe and convenience? Now, there are several tenets for you.

1.Choosing the great band’s door lock, because they have great quality.
2.Remember to choose the same direction with your door’s opening direction.
3.Pay more attention to door’s width size breadth, Ball Lock and Handle Lock can’t use on the door which less than 90cm.

4.Don’t put the engine oil in the cylinder, if the key is not flexible, you can put the pencil crumbs in it.
5.When you install the door lock, you should only take down the side which has insurance. Remember not to take down the side which has cylinder.
6. If you turn on the insurance 90 and let it become perpetual insurance, you should open with keys.

7.Don’t use the wet towel to scrub the lock body and cylinder, because that will be rusted.
8.You should keep the handle when you close the door, and you should put out your hand when the door is closed.