Passed the ANSI A156.4-level 2 million performance test of the American standard Passed the UL 10C 3-hour fireproof standard of the American Underwriters Laboratory Passed the GA93-2004 door closer performance and fireproof performance 90-minute test Closing force level ANSI1-6 Adjustable Applicable door width: 750~1400MM Applicable door weight: 20~120KG Maximum door opening angle: 180 degrees, the door opening direction is not divided into left and right hands Speed adjustment function: adjus

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