执行标准:EN1158，8级，50万次测试
中国GB12955-2008防火标准，120分钟防火
适用门型:木质及钢制防火门
功能描述:与闭门器配合使用,使双开门顺利关闭
Execution standard: EN1158, Level 8, 500000 tests
Chinese GB12955-2008 Fire Protection Standard, 120 minute fire protection
Suit for wooden and steel fireproof doors
Function : Used in conjunction with a door closer to ensure smooth closure of double doors
