GB 50242-2002 第10.2.15条
| **** | Drainage main risers and horizontal main pipes shall be subjected to a ball-passing test; the test ball diameter shall be no less than 2/3 of the drainage pipe diameter, and the ball-passing rate must reach 100%. |
GB 50242-2002 第10.2.15条 Code for Acceptance of Construction Quality of Building Water Supply, Drainage and Heating Works
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- GB 50242-2002 第2.0.3条Code for acceptance of construction quality of building wat…
- GB 50242-2002 第2.0.4条Code for Acceptance of Construction Quality of Building Wat…
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