D&D Hardware manufactures CE-certified EN12209 mortise locks engineered specifically for commercial fire doors. With 260-minute fire resistance, solid SUS304 stainless steel construction, and 18+ years of OEM/ODM expertise, we are the trusted manufacturing partner for fire-rated metal door manufacturers worldwide.
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The door scheduling is suitable to the design which is belong to designer. The designers must have concept of design, and then find the door hardwares which meet the design's requirement of designers.1.FactorsThe location of doorThe functions of inter door and outer doorThe situations of safetyThe s
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The hinge, an important component of the door, is related to its function and service life. With the increasing variety of functions, hinges come in a variety of specifications, but it is also important to ensure the safe use of hinges after retrofitting or replacement. Let's find out how to install
READ MORE The lock cylinder is an important part of the lock, and it is the main part that controls the unlocking of the lock. The lock core and the key can rotate and drive the core of the lock bolt. The main function of the lock cylinder is to twist the square tongue of the mortise lock, starting the inclin
READ MORE The design of the mortise lock is very popular. It is a commonly used lock and is often used in commercial applications. They are sturdy and reliable, with diversified structures, and have withstood the test of time. In fact, these mortises can resist bad weather and use for decades in old houses an
READ MORE The mortise lock is a very popular and ancient design that has stood the test of time. They are sturdy and reliable. Their structures are also relatively diverse. Modern mortise locks are a popular lock often used in the security industry of commercial locksmiths. Its rugged design has stood the tes
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