Standard Code | Standard Title | Standard Class | Order |
---|---|---|---|
GB/T 24590-2021 |
Enhanced tubes for efficient heat exchanger 高效换热器用 特型管 |
China National Standards Enhanced tubes efficient |
English PDF |
GB/T 24590-2009 |
Enhanced tubes for efficient heat exchanger 高效换热器用特型管 |
China National Standards Enhanced tubes efficient |
English PDF |
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