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  • Hinge introduction

    21-07-2018

    A hinge is a mechanical device used to connect two solids and allow relative rotation between the two. The hinge may consist of a movable component or a foldable material. The hinges are mainly instal...

  • Shutter doors

    27-07-2018

    Profile The profiles of the rolling door on the market are divided into aluminum-magnesium alloy and recycled aluminum. The high-quality rolling door profiles are made of aluminum-magnesium alloy, whi...

  • Technical requirements for fire shutter doors

    03-08-2018

    1 . Average lifting speed: 3 m / min. 2.  Fire resistance time: 240 minutes. 3 . Smoke leakage: 0.18m3/min. 4 . Electric up and down, automatic locking, manual opening. 5 . Received the smoke temperat...

  • The depth of the curtain embedded in the guide rail should meet the following requirements:

    11-08-2018

    The guide rail with smoke prevention performance must have smoke prevention device. The material used should be non-combustible material. The smoke insulation device and the roller blind table should ...

  • Acceptance specification for fire shutter doors - threshold

    17-08-2018

    1.The structure of the threshold must effectively prevent the spread of fire. 2.For the threshold with smoke prevention performance, a smoke prevention device must be provided to effectively prevent t...

  • The effect of fire shutter doors

    24-08-2018

    1. The integrated bus is used internally, and the data transmission is reliable and rapid. 2. It has automatic detection of phase sequence, correction and phase loss protection. The main power backup ...