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| 船用閥門雙偏心型閥座圈: | |
 | Item Name：船用閥門雙偏心型閥座圈 ISO國際標準 |
| Instruction： | |
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Item | Size | ф A | ф B | фC |
1 | DN50 (2＂) | 76.3 | 51 | 46.1 |
2 | DN65 (2.5＂) | 89 | 62.8 | 49.1 |
3 | DN80 (3＂) | 103.9 | 77.3 | 48.4 |
4 | DN100 (4＂) | 135 | 102.5 | 55.3 |
5 | DN125 (5＂) | 159 | 121.8 | 58.8 |
6 | DN150 (6＂) | 188.4 | 154.2 | 59.1 |
7 | DN200 (8＂) | 238.2 | 200.9 | 64.1 |
8 | DN250 (10＂) | 292.4 | 248.9 | 71.8 |
9 | DN300 (12＂) | 344.2 | 299.9 | 81 |
lO | DN350 (14＂) | 375.1 | 331.7 | 79.5 |
11 | DN400 (16＂) | 439.2 | 387.5 | 90 |
12 | DN450 (18＂) | 490.18 | 438.4 | 109 |
13 | DN500 (20＂) | 535 | 489.6 | 135 |
14 | DN600 (24＂) | 654.2 | 590.1 | 156 |