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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 37357-2019 |
Cast iron pipes, fittings and accessories for rain drainage of building roof 建筑屋面雨水排水铸铁管、管件及附件 |
China National Standards Cast iron pipes, |
 English PDF |
| GB/T 12772-2016 |
Cast iron pipes，fittings and accessories with flexible joint sewerage for drainage 排水用柔性接口铸铁管、管件及附件 |
China National Standards Cast iron pipes, |
English PDF |
| GB/T 12772-2008 |
Cast iron pipes、fittings and accessories with flexible joint sewerage for drainage 排水用柔性接口铸铁管、管件及附件 |
China National Standards Cast iron pipes, |
English PDF |
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