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quick open&close watertight hatch cover :
TYPE | SIZE OF CLEAR OPENING D | DECK OPENING D1 | INSIDE DIA OF HATCH D2 | OUT DIA OF COVER D3 | THICK OF COVER t | HATCH | CENTRAL SPACE B | WEIGHT kg | |
THICK t1 | HEIGHT H | ||||||||
600 | 640 | 670 | 720 | 12 | 12 | 200 | 473 | 245 | |
650 | 690 | 720 | 770 | 498 | 266 | ||||
700 | 740 | 770 | 820 | 523 | 285 | ||||
750 | 790 | 820 | 870 | 548 | 306 | ||||
800 | 840 | 870 | 920 | 573 | 328 |
quick open&close watertight hatch cover