GB/T 40402-2021
聚乙烯外护管预制保温复合塑料管
Pre-insulated composite plastic pipes with polyethylene casing
- 实施日期
- 2022-03-01
- ICS 分类
- 91.140.10
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
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GB/T 40402-2021
Pre-insulated composite plastic pipes with polyethylene casing
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