GB 50370-2005 第3.1.7条
| **** | **Pipe material and connection**: Pipes in hotel buildings should be seamless steel pipes or galvanized steel pipes, connected preferably by flanges or threads, avoiding welding (to reduce fire hazards). |
| **** | **Pipe material and connection**: Pipes in hotel buildings should be seamless steel pipes or galvanized steel pipes, connected preferably by flanges or threads, avoiding welding (to reduce fire hazards). |
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