Fast shutter doors fire zoning and fire partition of don't usually make frequent use, once the area of fire shutter should effectively put into use.
防火分区和防火隔断的快速卷帘门平时不作频繁使用，一旦区域发生火情，卷帘应有效地投入使用。
Guangzhou yajunyun door industry co. , LTD is a professional design, production, sales, installation of fire doors, fire shutter, fire glassdoors, security doors production enterprises.
是一家专业设计、生产、销售、安装防火门、防火卷帘门、防火玻璃门、防盗门的生产企业。
Guangzhou yajunyun door industry co. , LTD is a professional design, production, sales, installation of fire doors, fire shutter, fire glassdoors, security doors production enterprises.
是一家专业设计、生产、销售、安装防火门、防火卷帘门、防火玻璃门、防盗门的生产企业。
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