smoke alarm,smoke detector,PIR detector,strobe light siren,magnetic door switch - Shenzhen Longsin
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4/F,Building2, Kaijieda Industry Zone,
Huachang Road, Longhua, Shenzhen, China.

The Training of Quality Assurance and Sampling Ins

Category:Company news DATE:2016-01-16

 In order to further strenghthen the manageme...

Longsin 1800 comperhensive test smoke box

Category:Company news DATE:2016-02-25

Recently Shenzhen Longsin Intelligent Technology c...

How Do Smoke Detectors Work?

Category:Industy News DATE:2014-08-20

There are two main types of smoke detectors: ioniz...

Smoke alarm frequently asked questions

Category:Industy News DATE:2016-05-26

 1. smoke alarm works? Smoke alarm consists ...