- UL listed upright fire sprinkler
- 2016-11-15 03:50
- /703257788_225.jpg" data-alt="UL listed upright fire sprinkler"ori-width="585" ori-height="387" /
- ZSTP-glass ball fire nozzle
- 2016-10-24 16:50
- ZSTP-Type glass ballnozzleis made of glass bulb, copper alloy frame and seals.Thenozzle frame is carefully forged by co