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Marine Type D Manhole Cover
Marine Stainless Steel Type D Manhole Cover for Ship
1.Material: Steel
2.Size: as you wanted
3.Type: A, B, C, D
4.Surface: Welding Painted
Marine Certificate: CCS, ABS, LR, GL, NK, RS, DNV, KR, BV, RINA
| Nominal size | 11 | 12 | 13 | b1 | b2 | b3 | s | Fastening piece | Quality | |
| 450X350 | 450 | 570 | 620 | 350 | 470 | 520 | 14 | M20 | 16 | 73.1 |
| 16 | 81.6 | |||||||||
| 18 | 90.2 | |||||||||
| 600X400 | 600 | 720 | 770 | 400 | 520 | 570 | 14 | 20 | 83.6 | |
| 16 | 88.8 | |||||||||
| 18 | 94.8 | |||||||||
| 800X600 | 800 | 920 | 970 | 600 | 720 | 770 | 14 | 26 | 108.4 | |
| 18 | 120.6 | |||||||||
| 20 | 149.8 | |||||||||
| 800X400(Ellipse) | 800 | 930 | 980 | 400 | 530 | 580 | 14 | 24 | 89.4 | |
| 16 | 102.5 | |||||||||
| 20 |
127.8 |
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