Product Description: Fixed fire alarm equipment is used to alert and remind in case of emergency. The fire alarm equipment is made of aluminum alloy, ...
Product Description: Fixed fire alarm equipment is used to alert and remind in case of emergency. The fire alarm equipment is made of aluminum alloy, ...
600±20Hz Sound Frequency Fire Detection Alarm Designed by Li Jing *, *::before, *::after {box-sizing: border-box;}* {margin: 0;}html, body {height: .....
Reliable Fire detection alarm 55*50*85MM with 15±1S warning time *, *::before, *::after {box-sizing: border-box;}* {margin: 0;}html, body {height: 100...