Passed GA93 fireproof door closer fireproof certification Complies with CE certification, passed EN1154 (adjustable force 2-4) test standard Spring strength: adjustable 2-4 force Life is higher than 500,000 times High-strength cast aluminum material Applicable door width: 850-1100MM Applicable door weight: 40-80KG Maximum door opening angle: 120 degrees, door opening direction is not divided into left and right hands Shell material: die-cast aluminum Stop function: slide rail positioning Speed

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