"Welding Neck" CNS Standards List| Hexagon Domed | ISDN primary | Hard Bast | Blow molded | Contact Ratio | Polyester Spun | Method test | Reflection Lamps | |
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CNS 7558
2020 Edition Welding-Neck Steel Pipe Flanges (30 kgf/㎠) 熔接頸鋼製管凸緣(30 kgf/㎠) |
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