Fast shutter doors fire zoning and fire partition of don't usually make frequent use, once the area of fire shutter should effectively put into use.

防火分区和防火隔断的快速卷帘门平时不作频繁使用，一旦区域发生火情，卷帘应有效地投入使用。

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Guangzhou yajunyun door industry co. , LTD is a professional design, production, sales, installation of fire doors, fire shutter, fire glassdoors, security doors production enterprises.

是一家专业设计、生产、销售、安装防火门、防火卷帘门、防火玻璃门、防盗门的生产企业。

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The door and window are designed as steel fire protective door, aluminum alloy window and shutter.

门窗设计：主要有钢质防火门、铝合金窗及百叶窗。

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Because of the camera's silent electronic shutter, you won't need to deal with a rapid-fire shutter sound either.

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From there, you'll be able to use all of your iDevice's sensors as triggers, from motion through to facial recognition and even GPS. The app doesn't just fire the shutter, either -- it also gives you control over the focus and flash.

ENGADGET: Triggertrap: nine ways to activate your DSLR with an iOS device, choose one

The mayor's preliminary budget proposal for the fiscal year beginning July 1 calls again for the FDNY to shutter 20 fire companies, a proposal that council members have blocked in the past.

WSJ: FDNY Exam Now Looking Costly to City