At least 2 years old, because I am doing the project, you can need a large number of purchases.
Others say the Internet is cheaper, but not kind, afraid of poor quality. We recommend to me.
Because the door closers are also to do life testing immediately out of the 3C before doing CE testing and other domestic 20-30 are basically under the service life of 50,000 times, for example, Wuxi Gelite, the interests of OKorder Opel Not as much as he did advertising that more than 200,000 times. And then there is a regular test report price between 30-70, for example, GMT and then up is the international brand, and Gezer estimated that you will not consider expensive but really stable, which is not the same door
The key is the frequency of use of the janitor
