https://www.seoweb66.com/web/QA?postID=553954手機門禁
GSM手機開關控制硬體-GL1000-S
3000 WOG 三件式碳鋼鍛造球閥/3000 WOG 3-pc forged CS ball valve

Size range:
Reduced port – ¾”~3” (DN20~DN80)
Full port – ¼”~2” (DN8~DN50)
Pressure rating: 3000 psi (ANSI Class 1500)
Seat material: Delrin
Temperature range: -20°F to 180°F (-29°C to 82°C)
Approvals: CRN registered, API 607 Fire-safe approved (5th Edt.)
GSM手機開關控制硬體-GL1000-S
GSM手機開關控制硬體-GL1000-S