"Tolerances Pipe" CNS Standards List| Chemical Reagent | Drinking water | Safety Standards | Flat Seal | Iron ores-Methods | Sodium hydroxide | Standard Sand | Iron steel-Methods | |
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CNS 7120
2022 Edition Tolerances for Pipe Flange 管凸緣尺度公差 |
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CNS 7120
2020 Edition Tolerances for Pipe Flange 管凸緣尺度公差 |
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