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EN conceled door closer DC4024-S
Passed GA93 fireproof door closer fireproof certification Spring strength: adjustable 2-6 force life is higher than 500,000 times Cylinder internal cam structure, high-strength cast aluminum material Applicable door width: maximum width 1100 mm Maximum door opening angle: 120°, door opening direction is not divided into left and right hand Door opening buffer: adjustable buffer strength Shell material: die-cast aluminum Stop function: slide rail positioning Speed regulation function: adjustabl
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