UL 181厂制风管和风管接头检测认证
UL 181-2005 Standard for Factory-Made Air Ducts and Air Connectors
UL 181-2005 厂制风管和风管接头
UL 181风管及风管接头测试项目
Flame Resistance Test
Bending Test
Flame Penetration Test
Burning Test
Corrosion Resistance
Mold Growth and Humidity test
UL 181厂制风管和风管接头检测认证
UL 181-2005 Standard for Factory-Made Air Ducts and Air Connectors
UL 181-2005 厂制风管和风管接头
UL 181风管及风管接头测试项目
Flame Resistance Test
Bending Test
Flame Penetration Test
Burning Test
Corrosion Resistance
Mold Growth and Humidity test