GB 50015-2019 第4.2.4条
| Piping for water feature projects should use corrosion-resistant materials, such as stainless steel pipes and plastic pipes. Pipe connections should be tight, and outdoor pipes should have freeze protection measures.
| Piping for water feature projects should use corrosion-resistant materials, such as stainless steel pipes and plastic pipes. Pipe connections should be tight, and outdoor pipes should have freeze protection measures.
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