UL1821：消防设备用热塑喷水器的管及其配件
日期:2010-09-09 00:00
UL 1821：消防设备用热塑喷水器的管及其配件
UL 1821：Standard for Safety for Thermoplastic Sprinkler Pipe and Fittings for Fire Protection Service
Abstract 摘要
These requirements cover thermoplastic pipe and fittings for use in wet pipe sprinkler systems for fire protection service
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08/27 08:21