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  • OUBAO SECURITY TECHNOLOGY CO.,LTD
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    • Series Fireproof Door Closer
    • 5000 Series Fireproof Door CloserWith applications of high quality anti-freeze constant lubrication hydraulic fluid and needle bearing, 5000 series fireproof door closers operate smoothly at the temperature ranges from subzero 40℃ to 60℃, which is very suitable for exterior environment installation. Thanks to the dual independent regulating valves, the closing and latching speeds of door closers maintain smoothly. With 10-year-warranty, we guarantee our door closers can be well used more than 150 million cycle times ...
    • Series Automatic Door Closers
    • 700 Series Automatic Door Closers 700 series automatic door closers, more often known as automatic door openers, are one of the earliest series of door closers manufactured by Oubao Security Technology. Without buffer function, they are typically controlled by electricity with push button, motion detector, proximity detector or other devices to judge when to appropriately open and close the door...
    • Series Heavy Duty Track Arm Door Closers
    • 9000 Series Heavy Duty Track Arm Door Closers9000 series heavy duty track arm door closers are a series of multi-size heavy duty door closers with adjustable spring power. Approved by ANSI 156.4, UL, UL10C, cUL, EN1154 and CE quality authentication, the heavy duty track arm door closers are designed for commercial, institutional, residential and other high traffic applications, including office building, shopping centers, supermarkets ...
    • Series Multi-Size Door Closer
    • 8000 Series Multi-Size Door CloserPossessing good features of low freezing point, 8000 series multi-size door closers have high quality hydraulic fluid inside, which makes them operate smoothly at temperatures ranges from subzero 30℃ to 60℃. Thanks to the dual independent regulating valves, the closing and latching speeds of the heavy duty door closers maintain smoothly. It only takes approximately 20 seconds to preset at the factory model. And the delay time of the door closers can be adjusted up to ...
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