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UPVC profiles are widely used in the construction industry as they are durable, energy-efficient, and low maintenance. In ord......
When it comes to choosing doors and windows for your home or office, there are many factors to consider, including the type o......
As one of the most common materials for doors and windows, UPVC (unplasticized polyvinyl chloride) profiles have gained popul......
1. Size and specification of fire door In simple terms, the size of fire doors is generally the following empirical figures:......
Fire door selection points Look at the building: Steel fire doors are moderate in price, but they are heavy in weight, labo......
Abstract: Fire door monitoring system is divided into normally open fire door monitoring system and normally closed fire door......