| 标准编号 | EN ISO 1452-4-2009 |
| 标准名称 | Plastics piping systems for water supply and for buried and above-ground drainage and sewerage under pressure - Unplasticized poly(vinyl chloride) (PVC-U) - Part 4: Valves |
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| 标准状态 | |
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| 批准文号 | |
| 发布日期 | 2009-12-01 |
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| 替换信息 | |
| 前言 | |
| 无 |
