"Welding Neck" CNS Standards List| Measuring Methods | B ISDN | Method Rough | Method test | Method Test | Low Voltage | High boots | Crystalline silicon | |
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CNS 7558
2020 Edition Welding-Neck Steel Pipe Flanges (30 kgf/㎠) ç†”æŽ¥é ¸é‹¼è£½ç®¡å‡¸ç·£ï¼ˆ30 kgf/㎠) |
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