Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB 5135.2-2003 |
Automatic sprinkler system--Part 2:Wet system alarm valves,retard chamber,water motor alarm 自动喷水灭火系统 第2部分: 湿式报警阀、延迟器、水力警铃 |
China National Standards chamber,water |
English PDF |
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