防火门的滑动五金件|沙特标准|SASO-UL-14B
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防火门的滑动五金件|沙特标准|SASO-UL-14B
SASO-UL-14B
Standard for Sliding Hardware for Standard Horizontally Mounted Tin Clad Fire Doors
标准水平安装镀锡防火门的滑动五金件标准
SASO-UL-14B
Standard for Sliding Hardware for Standard Horizontally Mounted Tin Clad Fire Doors
标准水平安装镀锡防火门的滑动五金件标准
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