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GC2、GB2级压力管道安装
GC2:
1、输送火灾危险性为甲、乙类可燃气体或甲类可燃液体介质且设计压力P<4.0MPa 的管道;
2、输送可燃流体介质、有毒流体介质,设计压力P<4.0MPa 且设计温度≥400℃的管道;
3、输送非可燃流体介质、无毒流体介质,设计压力P<10.0MPa
GB2:
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